瑞典专利SE1000753A1 Security system adapted to a processing plant

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专利摘要:
The present invention comprises a safety system (“A”) adapted to a process plant (“A”), where the plant is built up of a number of series-oriented and / or parallel-oriented process steps (P1 - P13) or discrete points and the safety system comprises a control unit (“ST”). ") With a calculation circuit (23), to which are connected a plurality of sensor units (S1 - S4), related to all or selected process steps or discrete points, where each or coordinated sensor units (S1 - S4) are adapted to be able to sense and to the control unit ("ST") and the calculation circuit (23) have at least any abnormal behavior occurring and that to said control unit ("ST") and the calculation circuit 23 are coupled ﬂ number of means, which means (M1 - M3) are activatable, via said control unit and calculation circuit, depending on one or ﬂ your evaluated abnormal conditions. It is proposed that Figure 2 be attached to the summary at the time of publication.
公开号:SE1000753A1
申请号:SE1000753
申请日:2010-07-09
公开日:2012-01-10
发明作者:Lennart Carl Erik Jansson
申请人:Firefly Ab；
IPC主号:

专利说明:

The invention is based on the said control unit comprising comprise first circuits, for receiving signals significant for said sensor units and its criteria, second circuits, for generating signals significant for activating said means adapted for a selected action, third circuits in the form of calculation circuits, adapted to, depending on a received information within said first circuits, generate an output signal and / or output signals for activating one or more of said means adapted and / or related for a selected measure.
In addition, the present invention requires the existence of fourth circuits to store within them criteria, such as time-related criteria, significant for determining normal process functions and / or processes within the plant and its individual process steps. The term "plant" should not only include a sub normally considered, transported medium such as within a production plant, for a step-by-step processing of a raw material into a finished product or a semi-finished product, but also other applications, including plants of the form metro system, traction system and the like, where it is necessary to with a number of sensors and / or sensor units and associated means, at least activatable via a control unit depending on one or ﬂ your evaluated abnormal conditions, such as one or ﬂ your sprinkler units, adapted to cover and / or monitor a limited area.
Security systems of this kind may in a proposed application be built up of a number of series-oriented and / or parallel-oriented process steps or monitored areas, monitored points and the like and where such a security system is to comprise a computer or central unit equipped control unit and therein - going and / or related calculation circuits, to which output signals for a plurality of sensor units are connected.
These sensors or sensor units shall then be related to all or at least to selected process steps or monitored areas or points, where each of, or coordinated, sensors shall be adapted to be able to sense and to the control unit continue or forward each behavior and sensed northerly and / or abnormal condition, which can then be subjected to a storage and / or processing, by means of calculation circuits and memories related to said control unit.
In addition, a plurality of means are connected to said control unit, which means are activatable, via said control unit, in dependence on an evaluated and / or calculated abnormal condition, executed from utilized sensor units.
BACKGROUND OF THE INVENTION Methods, arrangements and constructions related to the above-mentioned technical field and with a function and a nature that meets the set requirements are previously known in a number of different embodiments.
As an example of the background of the technology and the technical area to which the invention relates, various safety systems can be mentioned for more or less complex production or process plants, where it is important that, at discrete points and / or within clearly defined areas within the plant, continuously or periodically let know the basic conditions that shall apply to a normal process plant and as soon as a used sensor or sensor unit indicates an abnormal condition, the control unit will be able to activate a sensor or sensor unit nearby via various selected measures, to search restore such an abnormal relationship to a normal relationship and, as soon as the normal relationship reappears, have said means deactivated via the control unit.
As a further example of the prior art, one can mention a process plant to a process plant, with series-oriented and / or parallel-oriented process steps, for successively or in parallel having a medium transported through the process plant and its process steps, such as a medium transporting individual particles, adapted safety system, with a number of sensors or sensor units, intended to be able to sense one or more criteria, related to the plant and / or process steps and activate a number, for a selected action via the control unit adapted to the plant and / or process steps related, means. Said sensors and / or sensor units and / or said means shall there be related to a control unit, as input criteria and as output criteria.
The control unit shall then comprise and / or have access to first circuits, in order to receive signals significant for said sensors or alternatively sensor units and its criteria, and other circuits, in order to generate signals significant in order to activate said signals adapted to a selected action and / or related means.
The control unit shall further comprise and / or have access to third circuits in the form of calculation circuits, adapted to, depending on a received information within said first circuits, have an output signal and / or output signals generated to activate one or more of said action-related means.
In addition, the concept is based on the control unit comprising and / or having access to, fourth circuits, in order to store within them criteria, such as time-related criteria, significant for normal processes within the plant and its individual process steps.
Corresponding safety systems can also be used at facilities in the form of rail-bound transport systems, where it is important to be able to monitor, primarily individual tunnel sections, a limited area and quickly have abnormal conditions, such as fire and / or smoke, indicated, and activate selected action related remedies.
A safety system adapted to a system is also known, where the system or the like is built up of a number of series-oriented and / or parallel-oriented process steps and where such a safety system comprises a control unit, to which a number of sensors and / or sensor units, related to all or selected process steps or monitored discrete areas and points, where each of or coordinated sensors are adapted to in any case be able to sense and to the control unit have any behavior behaved in a normal and / or abnormal condition and that to said control unit is connected a number of action-related means, which means are normally activatable, via said control unit, in dependence on an abnormal condition evaluated within the control unit's calculation circuits. 10 15 20 25 30 Sensors and / or sensor units of the associated type shall be adapted to be able to detect a significant quantity occurring within the process plant and may in this case consist of quantities related to fire, smoke, heating, movement and other significant quantities. . also including surveillance cameras.
EXPLANATORY STATEMENT / TECHNICAL PROBLEMS Considering the fact that the technical considerations that a person skilled in the relevant technical field must make in order to be able to offer a solution to one or more of the technical problems posed are initially the necessary measures and insight into / or the sequence of measures to be taken and the necessary choice of the means or means required, the consequent technical problems should, as a result, be relevant in the creation of the present invention.
Taking into account the prior state of the art, as described above, it should therefore be seen as a technical problem to be able to realize the significance of, the benefits associated with and / or the technical measures and considerations that may be required to: at a, to a process plant, with series-oriented and / or parallel-oriented process steps, to successively or in parallel have a medium transported through the process plant and processed, such as a medium transporting individual particles, adapted safety system, with a number of sensors and / or sensor units, intended to be able to detect one or ﬂ era, criteria related to the plant and / or process steps, and a number, for a selected measure adapted, related to the plant and / or process steps, means, said sensor units and / or said means are both related to a control unit, with first circuits, for receiving signals significant for said sensor unit and its criteria, second circuits, for generating signals significant for activating said means related to and for a selected action and / or adapted means, third circuits in the form of calculation circuits, adapted to, depending on a received information within said first circuits, cause a output signal and / or output signals for activating one or more of said action-related means, fourth circuits for storing within them criteria, such as time-related criteria, significant for normal process functions within the plant and its individual process steps, to offer an ﬂ exlbi- lO 15 20 25 30 with regard to a monitoring of one or ﬂ your areas or points and where each sensor and / or sensor unit, via the control unit, must be able to be adapted to influence a pre-selected number of means related or adapted for a selected measure and during taking into account the orientation of the agent or agents within the plant and its individual process steps.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to allow a first information, behavior within the first circuit and related to a first sensor unit, and a other information, occurring within the first circuit and related to a second sensor unit, may be evaluable within a fifth circuit in order to determine whether the first information and the second information appear in time within a selected time discrepancy area and / or occur at a temporal discrepancy between a time of the first information and a time of the second information.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to allow thus received and temporally different information, via a sixth circuit, to be compared with a stored Nordic-related time discrepancy.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to allow a behavioral time discrepancy equal to, exceeding and / or less than a preselected value , may activate, via the third circuit, an output signal from the second circuit, to activate one or more of said action-related means.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to allow the first information and the second information to derive from one and the same significant quantity, passing through the process plant and / or also with the required information about the transported medium and its speed. 10 15 20 25 30 There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to allow sensitized criteria to be adapted within one or more sensor units to be able to distinguish between different intensities assigned said quantity (s).
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to achieve an established time duration, an established time discrepancy, an established criterion and / or an evaluated criterion intensity. allow one or ﬂ era of said calculation circuits to be adapted to activate one or more output signals, for an activation of one or ﬂ era of said action-related means.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to choose as a significant quantity, a sensed pressure value, a sensed temperature, a sensed temperature related to an identified particle and / or a sensed motion and / or its derivatives with respect to time.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to choose as a measure-related means a means in solid, ﬂ surface and / or in gas form, alternatively , a medium transport shut-off valve, a liquid, powder and / or gas to the medium adding means, a branch valve acting on a conveyor belt, reversing a selected conveying direction on a conveyor belt and / or a feed screw or the like.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to allow each of, or selected, sensors or sensor units to be co-ordinated with each of, or selected, means, via said control unit and calculation circuits.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to allow a sensor or sensor unit, in an evaluated abnormal condition, to obtain be adaptable to, via the control unit and the calculation circuit, simultaneously or serially, activate a number of coordinated action-related means, which coordinated means are strategically distributed within and / or around individual process steps within the process plant or discrete areas and / or points, to via action-related means thus activated, cause a predictable and / or established cause of the sensed abnormal condition to be limited and / or shut off to one of the output signals of the sensor and / or sensors.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to include as a coordinated and selected action-related means a sensor or process step or steps immediately preceding and a the sensor or process step or steps immediately following action-related means.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to include, as coordinated and selected action-related means, a number of, connected to a number of sensors, similar or diverse, action-related means.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to interpret as an abnormal relationship an activation of a preselected number, from each other. in a transport direction, different sensors or sensor units within a preselected duration of time which is shorter (or longer) than that which a normal transport distance of the medium, such as particulate goods or the like, would require.
There is a technical problem in being able to realize the significance of, the benefits associated with and / or the technical measures and considerations that will be required to allow said sensor and / or sensor units to be adapted sensitive to their assigned size for selected criteria, such as for heat from glowing particles, for other heat radiation in the UV range, for motion and the like. 10 15 20 25 30 LösivilvGEN The present invention is based on the initially known prior art with one, to a process plant, with series-oriented and / or parallel-oriented process steps, in order to successively and / or in parallel have a genome transported and processed. the process plant transported medium, such as a medium carrying individual particles, adapted safety system, with a number of sensors or sensor units, intended to be able to detect one or ﬂ era, related to the plant and / or process steps, criteria and a number, adapted for a selected measure, to the laying and / or process steps related, means, said sensor units and / or said means being related to a control unit, with first circuits, for receiving signals significant for said sensor units and its criteria, second circuits, for generating signals significant for activating said action-related means, third circuits in the form of calculation circuits, anp depending on a received information within said first circuits, cause an output signal and / or output signals to be generated to activate one or ﬂ era of said action-related means, fourth circuits, to store within them criteria, such as time-related criteria, significant for normal processes within the plant and its individual process functions.
In order to be able to solve one or more of the above-mentioned technical problems, the present invention more specifically teaches that the prior art should be supplemented by allowing a first information, appearing within the first circuit and related to a first sensor unit and a second information, to appear. within the first circuit and related to a second sensor unit, may be evaluable within a fifth circuit to determine therein whether the first information and the second information occur in time within a selected time discrepancy area and / or occur in a time discrepancy between a valid first time for the first information and a valid second time for the second information, to have, via a sixth circuit, to compare a thus determined and valid time discrepancy with a stored normal-related time discrepancy or time discrepancy range so that in the event of a difference occurring, less than or exceeding a preselected value, lay activate, via the third circuit, an output signal from the second circuit, to activate one or more of said action-related means. 10 15 20 25 30 10 It is further indicated that the first information and the second information must originate from one and the same significant quantity, passing through the process plant as well as the transported medium.
A criterion sensed within one or ﬂ your sensor units, one or more of these sensor units must be adapted to be able to distinguish between different intensities assigned to said quantity.
Via an established time duration, an established time discrepancy, an established criterion and / or the intensity of an evaluated criterion, one or ﬂ era of said calculation circuits is adapted to activate one or ﬂ your output signals, for an activation of one or ﬂ era of said action-related means.
As a significant quantity, a sensed pressure value, a sensed temperature, a sensed temperature related to an identified particle and / or a sensed motion and / or its derivatives with respect to time are selected.
As a measure-related agent can be selected, an agent in solid, liquid and / or gaseous form. As such means, the medium transport shut-off valve, a liquid and / or gas to the medium adding means, a branch valve can act on a conveyor belt, reverse a selected conveying direction on a conveyor belt and / or a feed screw or the like may be used.
It is further indicated that each of, or selected, the sensors or sensor units shall be coordinated with each of, or selected, action-related means via said control unit and calculation circuits, that a sensor and / or a sensor unit, in an evaluated abnormal condition , is adapted to, via the control unit and the calculation circuit, simultaneously or serially activate a number of coordinated action-related means, which coordinated means are strategically distributed within and / or around individual process steps or discrete areas or points within the plant or equivalent, for to have the cause of the sensed abnormal condition within a delimitable space, such as a premises, a tunnel or the like, limited and / or confined via action-related means thus activated. 10 15 20 25 30 ll In addition, as proposed embodiments, falling within the basic idea of the present invention, it is indicated that as coordinated and selected action-related means, an area and / or one or ﬂ points immediately belong to the sensor or sensor units or process step or process steps previous one, the sensor or process step associated with, area and / or points immediately following a means.
Coordinated and selected action-related means include a number of means connected to a number of sensors or sensor units.
An activation of a pre-selected number from each other, calculated in a transport direction, is interpreted as an abnormal condition. different sensors or sensor units within a time duration shorter than or longer than that which a normal transport distance of the goods or similar transporting medium would require.
Said sensor can then be adapted sensitive to its significant quantities or criteria, such as for heat, from glowing particles, for other heat radiation within the UV range, for movement and the like.
ADVANTAGES The advantages that can mainly be considered to be characteristic of the present invention and the special significant characteristics thus indicated are that in this way conditions have been created for via a, to a process plant, with series-oriented and / or parallel-oriented process steps, to successively and / or in parallel have transported and processed a medium transported through the process plant, such as with individual particles, adapted safety system, with a number of sensors and / or sensor units, intended to be able to sense one or ﬂ era, related to the plant and / or process steps, criteria and a number of means adapted for a selected measure, related to the plant and / or the process steps, said sensor units and / or said means both being related to a control unit, with first circuits, for receiving signals significant for said sensor. 30 sensor units and its criteria, other circuits, for generating signals nificative for activating said action-related means, third circuits, in the form of calculation circuits, adapted to cause an output signal and / or output signals to be generated within said first circuits, in order to activate one or more of said action-related means and fourth circuits, in order to store within them criteria, such as time-related criteria, significant for normal process functions within the plant and its individual process steps.
Here it is indicated that a first information, occurring within the first circuit and related to a first sensor unit and a second information, occurring within the first circuit and related to a second sensor unit, must be evaluable within a fifth circuit, in order to determine whether the first information and the second information appear in time within a selected time discrepancy area and / or appear in a time discrepancy between a valid first time for the first information and a valid second time for the second information, in order to allow a comparison via a sixth circuit a valid time discrepancy thus determined with a stored normal-related time discrepancy range and / or time discrepancy and that in the event of a difference occurring, less than or exceeding a preselected value, having an output signal from the second circuit activated, via the third circuit, for to activate one or more of said action-related means.
Each of, or selected, sensors or sensor units is coordinated with each of, or selected, means via said control unit and computing circuits, to a sensor or sensor unit. in an evaluated abnormal condition, is adapted to, via the control unit and the calculation circuit, simultaneously or serially activate a number of coordinated means, which coordinated means are strategically distributed within and / or around individual process stages within the production plant or discrete points to via thus activated means let limit and / or close in a generated cause to the sensed abnormal condition.
What can primarily be considered to be characteristic of the present invention is stated in the characterizing part of the following claim 1. BRIEF DESCRIPTION OF THE DRAWINGS A presently proposed embodiment, having the significant features associated with the present invention, will now be described in more detail, by way of example, with reference to the accompanying drawings, in which; Figure 1 illustrates a safety system adapted to a simple process plant, in order to illustrate the basic preconditions for the present invention, but without the required control unit. Figure 2 illustrates a safety system adapted to a more complex process plant, but also here without the required control unit, Figure 3 shows in block diagram form the basic structure of a control unit with associated calculation circuits while, Figure 4 illustrates the existence and construction of a number of six circuits for the control unit and its calculation circuits, Figure 5 shows in side view a temperature sensitive sensor, with an adjacent action-related means, which is activatable, via the control unit and the calculation circuit, depending on an abnormal condition evaluated by the sensor or sensor unit and where said action-related means is illustrated here comprise a nozzle arrangement, for a water spray, and a flap unit, to close one channel or a pipe section, within a process plant, Figure 6 shows and illustrates a basic construction of a production or process plant with a number of process steps and with a number of sensor units and action-related means, according to Figure 5, distributed within the plant and connected to a control unit with associated calculation circuits and where this process plant can very well be replaced by a rail-bound transport system or the like, where the illustrated individual process steps with their units can be regarded as discrete areas or points and 10 15 20 25 30 Figure 7 shows, in relation to ﬁ gures 3 and 4, an alternative embodiment.
DESCRIPTION OF THE NOW PROPOSED EMBODIMENT It should then be emphasized at the outset that in the following description, of a presently proposed embodiment, which exhibits the significant features associated with the invention and which is clarified by the accompanying drawings, terms and a special terminology in the intention to make the inventive idea clear in the first place.
In this context, however, it should be borne in mind that the terms chosen here should not be construed as limiting only the terms used and chosen here, but it should be understood that each term thus chosen should be interpreted so as to include all technical equivalents that operate on the same or essentially the same way, in order to be able to achieve the same or substantially the same intention and / or technical effect.
With reference to the appended features, not only the present invention is shown schematically and in detail, but also the significant peculiarities associated with the invention have been concretized, through the embodiment now proposed and described in more detail below.
Thus, Figure 1 illustrates a safety system (S) adapted to a simple process plant (PA), in order to illustrate the basic preconditions for the present invention, but without the required control unit, while Figure 2 illustrates a “PA” process plant to a more complex process plant. adapted safety system but without the required control unit, Figure 3 illustrates in block diagram form the basic structure of a control unit with associated calculation circuits, of a first embodiment, while ﬁ figure 4 illustrates the existence of the construction of a number of circuits for the control unit and its calculation circuits.
Since the present invention is based on that within the process plant (PA); "PA" controls the fate of and / or the content of the transporting medium "m" and its change in utilized process steps has been illustrated in Figures 1 and 2 by the reference numerals T1, T2, T3, T4 and T5 in Figure 1. the normal times to be applied to the process plant (PA) through the process stage P1, the transport stage P2, the process stage P3, the transport stage P4, the process stage P5 and a valve P6, to select one of two possible outlets U1, U2.
The same applies to the process plant "PA" in Figure 2.
Figures 1 and 2 also illustrate the existence of a number of action-related means, designated A1, A2, A3 and A4, each coordinated with a sensor and / or sensor unit, designated S1, S2, S3 and S4.
Corresponding reference numerals have also been introduced in Figure 2, however, here as well as times T6, T7, T8 and T9 for an imaginary process through the process steps P6, P7, P8, P9, P10, P11, P12 and P13.
The significant peculiarities of the invention will be further illustrated, however, only with a reference to selected parts of Figure 2.
The invention is intended to have a more general application within the process steps P1 - P9, which is why these steps are not described in more detail.
The normalized times T1 - T9 are given in Figure 2 together with the current times in force during the process, denoted (t1), (t2), (t3), (t4), (t5), (t6), (t7 ), (t8) and (t9), only some of which will be used in a more detailed explanation of the present invention and with reference to Figure 4.
Figures 1 to 3 now illustrate one to one process plant "PA", with series-oriented and / or parallel-oriented process steps P1 - P9 resp. P10, P11; P12, for successively or in parallel having a medium transported by the process plant as a medium "m" carrying individual particles ("p") in ﬁ gur 2, adapted safety system 10 15 20 25 30 A number of sensor units S1 - S4 are intended to be able to sense one or more, M1 - M3, criteria and a number, for a selected measure adapted to the plant and / or the process steps related, means M1 - M3.
Said sensor units S1 - S4 and / or said means M1 - M3 are all related to a control unit ST, according to Figure 3.
This control unit ST has first circuits 21, for receiving signals significant for said sensors S1 - S4 and its criteria, second circuits 22, for generating signals significant for activating said action-related means M1, M2, M3, third circuits 23, in connection with calculation circuits, adapted to, depending on a received information within said first circuits 21, cause an output signal and / or output signals to be generated to activate one or more of said action-related means M1 - M3, fourth circuits 24, to allow within them store criteria T1 - T9, as time-related criteria, significant for normal processes within the plant and its individual process steps.
A first information (t1), occurring within the first circuit 21 and related to a first sensor unit S1 and a second information t2, occurring within the first circuit 21 and related to a second sensor unit S2 are evaluable within a fifth circuit 25 for allowing therein determine a temporal discrepancy (t1 - t2 = t12) between a time (t1) for the first information and a time (t2) for the second information.
Via a sixth circuit 26, a time discrepancy thus determined (t12) is compared with a stored normal-related time discrepancy (T12) and that in the event of a difference (djg) occurring, less than or exceeding a preselected value (Tiz), it is activated via the third circuit, an output signal from the second circuit 22, for activating one or more of said action related means M1 - M3.
The first information (t1) and the second information (t2) must originate from one and the same significant quantity, passing through the process plant as well as the transported medium 10 Via the criteria known within the sensor units, one or more of these sensor units S! - S4 adapted to be able to distinguish between different intensities.
Via a fixed time duration (t1; t2; Tig), a fixed time discrepancy and / or time discrepancy range (+/- d12), a set criterion and / or an evaluated criterion intensity, said calculation circuits are adapted to activate one or more output signals, for an activation of one or more of said action-related means M1 - M3.
As a significant quantity, a sensed pressure value, a sensed temperature, a sensed temperature related to an identified particle and / or a sensed movement are selected.
As an action-related means M1 - M3 is selected, a medium "m" transport shut-off valve, a liquid and / or gas to the medium adding means, a branch valve or the like.
With reference to Figures 5 to 7, proposed embodiments and arrangements are shown which may complement the process plant (PA); "PA" and the control unit "S"; "ST" according to Figures 1 to 3.
Thus, ﬁ clock 5 shows in side view and in section a pipe section 1, to which a sensor or sensor unit “S1” is coordinated, according to ﬁ clock 2.
The sensor "S1" can here be of a nature which allows the temperature of a piece of goods to pass the pipe section 1 in the direction of the arrow "P" and the flow.
Downstream of the sensor unit “S1” there is a first means (A1); 3, illustrated here as a set of nozzles 3a, distributed around the inner periphery of the pipe section 1.
The nozzles 3a are illustrated here as being connected to and coordinated with a valve 3b, which via an electric line 3c can be actuated to an active position, where water, through a pipe 3d, can be forced through the nozzles 3a, or to an inactive and normal pressure. ground position, where the water supply is closed. 10 15 20 25 30 Downstream of the sensor unit “S1” and the first means (A1): 3 there is an additional means 3 '. This means 3 'is of a different nature with a hatch or a door 3e, which is held in a position parallel to the pipe section 1 via a pivot pin 3f and a hasp (not shown) or a similar releasable member.
Upon an activating signal on the electrical line 3g, the door 3e is released, which falls down to and towards a stop 3h and thus can suddenly stop the flow "P" within the pipe section 1 and the transport distance P2 to the process step P3.
An arrangement and a pipe section 1, of the corresponding type, have been illustrated in Figure 6 with reference numerals, simplified for only the sensors "A": "S1" - "D": "S4" and associated action-related means, however, the water pipes 3d and the electrical wires 3c and 3g not shown.
In Figure 6, a sensor “A181” and a sensor belonging to means A 'may be assigned the reference numeral A.
The invention here is intended to have an application within a safety system adapted to a production plant “PA” where the production plant is built up of a number of series-oriented and / or parallel-oriented process steps, in ﬁ guren 6 designated_11 to 18.
Process steps 11 to 18 can, however, be considered as active process steps and can thus be assigned to any function and which must be monitored by sensors "S1" ("A" to "D") and means 3, 3 ', A' to H 'for to check that the process is running normally.
The safety system according to Figure 7, comprises a control unit 21, 23, to which are connected a number of these sensors, such as "A" to "H" and "S1" to "S4", related to all or selected process steps. 6 that the process stage 11, P1 is switched on by a sensor “A: S1”, while the process stage 12, P3 is partly switched on by the sensor “A: S1” and partly switched on by a sensor (S2, S3 and / or S4). Correspondingly, Figure 6 shows that process steps 13 to 18 have been assigned different sensors “C” to “H”, where each of or coordinated sensors is adapted to be able, with associated means A 'to H ', know current conditions at different locations within the facility "PA".
The sensors "A" to "H" are here, as in ﬁ clock 3, connected to the control unit "ST" in order to be able to distinguish and continue within the control unit every established and occurring abnormal condition.
A said number 3, 3 'is connected to said control unit "ST" and by means of the calculation circuit 23 and during the utilization of a number of memory units 21a, 21b; M1, M2, M3, which means are activatable, via said control unit and calculation circuit 21, 23, depending on an abnormal condition received and calculated and evaluated.
More specifically, it is indicated, with reference to Figure 7, that each of, or selected, sensors, such as the sensor “A: S1” are coordinated with each of, or selected, means A and B, via said control unit "ST" and its calculation circuit 21, 23.
A sensor "Az S1", in an evaluated abnormal condition, can then be adapted to, via the control unit "ST" and the calculation circuit 21, 23, and its memory units 21a, 21b simultaneously or serially, activate a number of coordinated means A '; B ', which coordinated means must be strategically distributed within and / or around individual process steps, discrete areas and / or points within the production plant "PA", in order to limit and / or close in the cause of the detected abnormal condition via means activated thus.
Coordinated and selected means A 'and B' include process step 12, immediately preceding and immediately following said means, where a section “K” is related to means A 'and B' and process step 12.
Coordinated and selected means B ', C', and E 'within section "L" include an activatable sensor 10 15 20 25 30 20 The means within sections "M" and "N" and also other sections are activatable by one or more ﬂ your sensors, such as “C” or “D”; ”D; E ”.
An abnormal condition is an activation of two sensors "F" separated from each other, calculated in one direction of transport, within a time duration (-d1z) shorter than that which a transport distance of goods would require.
Said sensor can be selected sensitive to heat, to glowing particles, to heat radiation, such as in the UV range, to movements and the like.
A sensor “S1” and one or more means 3, 3 'are, as Figure 5 suggests, closely coordinated to each other.
Via said control unit “ST” and calculation circuit 21, 23, a signal content from one or ﬂ your sensors is interpreted to activate a selected, or a number of selected, categories of means.
A distance, calculated in the transport direction, between a sensor “S1” and an adjacent means 3, is selected briefly.
Figure 7 illustrates various proposals for a coordination of different areas and sensors and a selected influence of available means 3, 3 ', M1, M2, M3. The invention is of course not limited to the embodiment given above as an example but can undergo modifications within the framework of the inventive concept illustrated in the appended claims.
Special consideration should be given to the fact that each displayed unit and / or circuit can be combined with any other displayed unit and / or circuit within the framework in order to be able to achieve the desired technical function.

权利要求:
Claims (12)
[1]
To a process plant, with series-oriented and / or parallel-oriented process steps, for successively and / or in parallel having a medium transported through the process plant, such as one formed by individual particles, adapted and processed, with a safety system number of sensors and / or sensor units, intended to be able to sense one or more criteria related to the plant and / or process steps, and a number of means adapted to the plant and / or process steps, means, said sensor units and / or said means are both related to a control unit, with first circuits (21), for receiving signals significant for said sensor units and its criteria, second circuits (22), for generating signals significant for activating said for a sensor unit. selected action adapted means (M1, M2, M3), third circuits (23) in the form of calculation circuits, adapted to, depending on a received information within said first circuits (21) generating an output signal and / or output signals for activating one or more of said means adapted for a selected action, fourth circuits (24) for storing within them criteria, such as time-related criteria, significant for normative process functions within the plant and its individual process steps, characterized in that a first information, occurring within the first circuit (21) and related to a first sensor unit (S1) and a second information, occurring within the first circuit (21) and related to a second sensor unit (S2) are evaluable within a fifth circuit (25) to determine therein whether the first information and the second information occur in time within a selected time discrepancy range and / or occur in a time discrepancy between a first time (t1 ) for the first information and a time (t2) for the second information, to have a value thus determined via a sixth circuit (26) compared for r the time discrepancy (t1 - t2 = dig) with a stored normal-related time discrepancy range and / or time discrepancy (T12)) and that in the event of a difference occurring, less than or exceeding a preselected value, having activated, via the third circuit (23), a output signal from the second circuit (22), to activate one or ﬂ era of said means adapted for a selected action (M1, M2, M3). lO 15 20 25 30 22
[2]
2.. Security system according to claim 1, characterized in that the first information and the second information derive from one and the same significant quantity, passing through the process plant as well as the transporting medium.
[3]
3.. Safety system according to claim 2, characterized in that by criteria identified within one or ﬂ your sensor units, one or more of these sensor units are adapted to be able to distinguish between different intensities assigned to said quantity.
[4]
4.. Security system according to claim 1, 2 or 3, characterized in that via a fixed time duration, a fixed time discrepancy, a determined criterion and / or an evaluated criterion intensity, one or ﬂ one of said calculation circuits is adapted to activate one or ﬂ your output signals, for an activation of one or ﬂ era of said means adapted for a selected action.
[5]
5.. Security system according to claim 2, characterized in that as a significant quantity, a sensed pressure value, a sensed temperature, a sensed temperature related to an identified particle and / or a sensed motion and / or its derivatives with respect to time are selected.
[6]
6.. Security system according to Claim 4, characterized in that a means adapted to a selected measure is selected in a solid, liquid and / or gaseous form.
[7]
7.. Safety system according to claim 4 or 6, characterized in that a means adapted to said selected measure is used, a valve shutting off the medium, a liquid, powder and / or gas adding means to the medium, a branch valve influencing a conveyor belt, reversing a selected conveying direction a conveyor belt and / or a feed screw.
[8]
A safety system according to any one of the preceding claims relating to a plant ("A"), wherein the plant is composed of a number, series-oriented and / or parallel-oriented process steps, discrete areas and / or points and wherein the safety system comprises a control unit with one or ﬂ your calculation circuits, to which a plurality of sensor units are connected, related to all or selected process steps or discrete points, where each of or coordinated sensor units are adapted to be able to detect and transmit to the control unit any behavior abnormal relationship and that to said control unit and calculation circuits are connected a number of action-related means, which means are activatable, via said control unit 10 15 20 25 23 and calculation circuit, characterized by an evaluated abnormal condition, characterized in that each of, or selected, sensor units are coordinated with each of, or selected, action-related m noble, via said control unit and calculation circuit, that a sensor unit, in an evaluated abnormal condition, is adapted to, via the control unit and calculation circuit, simultaneously or serially activate a number of coordinated action-related means, which coordinated means are strategically distributed within and / or around individual process steps within the plant or discrete areas or points, in order to have action-related means thus limited and / or closed off a delimited space, such as a room, a tunnel or the like, namely the one that has been shown to be a cause to the sensed abnormal condition.
[9]
System according to Claim 1, characterized in that the coordinated and selected action-related means comprise at least one means, the process step or process steps preceding and / or a process step or process steps following.
[10]
System according to Claim 1 or 7, characterized in that a number of means connected to one or a number of sensor units are included as coordinated and selected action-related means.
[11]
11. A system according to any one of the preceding claims, in particular claim 7, characterized in that an activation of a pre-selected number of different sensor units from each other, calculated in a transport direction within a time duration shorter than or longer than that which a normal transport distance of the vehicle or the like would require.
[12]
System according to claim 1 or 7, characterized in that one or more of said sensor units are adapted sensitive to an assigned significant quantity, such as heat, from glowing particles, other heat radiation, such as in the UV range, motion and the like. .

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同族专利:

公开号 | 公开日

SE535200C2|2012-05-22|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

法律状态:

优先权:

申请号 | 申请日 | 专利标题

SE1000753A|SE535200C2|2010-07-09|2010-07-09|Security system adapted to a processing plant|SE1000753A| SE535200C2|2010-07-09|2010-07-09|Security system adapted to a processing plant|

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