Relay circuit and emergency control box

Abstract

The utility model provides a relay circuit and an emergency control box. The relay circuit comprises a first change-over switch unit, a first relay unit, a second change-over switch unit, a second relay unit, a third change-over switch unit and a third relay unit. By adopting the relay circuit, each switch unit can be configured according to an actual application scene so as to adapt to the input signal type of an external IBP and / or FAS system, and different types of signal output can be configured. The relay circuit supports multifunctional setting, the emergency control box comprising the relay circuit can be configured according to application scenarios, the adaptation capability of a single emergency control box to FAS and / or IBP signal types is improved, the integration level of the single emergency control box is improved, and the reliability of the emergency control box is improved. And the increase of research and development and maintenance cost caused by using a plurality of different versions of emergency control boxes is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of signal circuits, in particular to a relay circuit and an emergency control box. Background Art

[0002] The emergency control box is an important device in the emergency fault alarm system of urban rail transit stations. It receives emergency signals output by FAS (Automatic fire alarm system), IBP (Integrated Backup Panel), etc., and outputs control signals and / or alarm signals according to the different emergency signals received. For example, it outputs control signals to control the emergency opening of the gate at the station, and outputs alarm signals such as fire linkage and / or emergency status.

[0003] The emergency control box is usually selected according to the actual application scenario, and corresponds to the type of emergency signal received and the type of control signal output. The type of emergency signal output by FAS and IBP may be a 24V active switch signal (active normally open or active normally closed, active signal polarity, high level valid or low level valid, etc.), or a passive dry contact switch signal (passive normally open or passive normally closed), depending on the application scenario, and the control signal output by the emergency control box also corresponds to the type of emergency signal received. The existing emergency control box is designed according to the needs of the actual application scenario and does not support multi-function pre-setting. Therefore, after setting, it can only support fixed signal types. If the signal type changes, the emergency control box cannot be applied. In addition, in actual applications, the same application scenario often has multiple different types of emergency signal inputs and different types of control signals and / or alarm signal outputs. In this case, it is often necessary to equip multiple different versions of emergency control boxes, which not only increases the manufacturing cost, but also requires a lot of manpower and material resources to maintain.

[0004] Therefore, how to improve the adaptability of the emergency control box to the input and output signal types, improve the integration of a single emergency control box, and avoid the cost increase caused by using multiple emergency control boxes is a technical problem to be solved by this application. Utility Model Content

[0005] The utility model aims to provide a relay circuit and an emergency control box, which are used to at least partially solve the technical problem of the need to use multiple emergency control boxes in the prior art, resulting in increased costs.

[0006] In order to achieve the above object, one aspect of the utility model provides a relay circuit, wherein the circuit of one embodiment includes:

[0007] a first switching switch unit, a first relay unit, a second switching switch unit, a second relay unit, a third switching switch unit and a third relay unit, wherein:

[0008] The first switching switch unit is electrically connected to an external system, a power supply unit and the first relay unit respectively, wherein the external system includes an IBP system and / or a FAS system, and the first switching switch unit is used to control the reception of an IBP input signal and / or a FAS input signal output by the external system, and the switch position thereof is determined by the type of the IBP input signal and / or the FAS input signal;

[0009] The first relay unit is electrically connected to the external system, the second switching switch unit and the second relay unit respectively, wherein the first relay unit is used to receive the IBP sampling signal and / or the FAS sampling signal output by the external system, and / or to receive the IBP input signal and / or the FAS input signal, control the output of the emergency state signal and / or the emergency state indication signal, and control the output of the IBP feedback signal through the second switching switch unit, and the switch position is determined by the type of the IBP feedback signal;

[0010] The second relay unit is electrically connected to the third relay unit, and is used to control the gate control signal output according to the emergency state signal, wherein the third relay unit controls the fire linkage indication signal output according to the gate control signal, and controls the FAS feedback signal output through the third switching switch unit.

[0011] Furthermore, the first switching unit includes:

[0012] a first single-pole double-throw switch, a second single-pole double-throw switch, a fourth single-pole double-throw switch, a fifth single-pole double-throw switch and a sixth single-pole double-throw switch; the first relay unit includes a first relay, a third relay, a fourth relay, a fifth relay and a sixth relay, wherein each relay includes at least one group of relay terminals, wherein the common end of the first single-pole double-throw switch is electrically connected to the power supply unit, and the throw end is electrically connected to the normally closed end and the normally open end of the first group of relay terminals of the first relay unit respectively; the common end of the second single-pole double-throw switch is electrically connected to one end of the coil of the first relay The common end of the fourth single-pole double-throw switch is electrically connected to the IBP input signal circuit, and the throw ends are electrically connected to the normally closed end and the normally open end of the second group of relay terminals of the third relay; the common end of the fifth single-pole double-throw switch is electrically connected to the digital ground, and one throw end is electrically connected to one end of the coil of the fifth relay; the common end of the sixth single-pole double-throw switch is electrically connected to the power supply unit, and the throw ends are electrically connected to the normally closed end and the normally open end of the first group of relay terminals of the fifth relay;

[0013] Among them, the other end of the coil of the first relay is electrically connected to the FAS input signal circuit, and the common end of the first group of relay terminals of the first relay unit is electrically connected to one end of the coil of the third relay and one end of the coil of the fourth relay respectively; the other end of the coil of the third relay is electrically connected to the digital ground, and the common end of the second group of relay terminals is electrically connected to the digital ground; the other end of the coil of the fourth relay is electrically connected to the digital ground, the common end of the first group of relay terminals is electrically connected to the digital ground, the normally open end is electrically connected to the third relay unit, and the common end and the normally open end of the second group of relay terminals are electrically connected to the FAS sampling signal circuit respectively; the other end of the coil of the fifth relay is electrically connected to the IBP input signal circuit, the common end of the first group of relay terminals is electrically connected to one end of the coil of the sixth relay, and the common end of the second group of relay terminals is electrically connected to the second switching switch unit; the other end of the coil of the sixth relay is electrically connected to the digital ground, and the common end and the normally open end of the first group of relay terminals are electrically connected to the IBP sampling signal circuit respectively.

[0014] Furthermore, the second switching unit includes:

[0015] The seventh single-pole double-throw switch, wherein

[0016] The common end of the seventh single-pole double-throw switch is electrically connected to the power supply unit, and one throw end is electrically connected to the common end of the second group of relay terminals of the fifth relay.

[0017] Further, wherein the second relay unit comprises:

[0018] At least one relay, wherein the relay comprises at least one set of relay terminals, wherein

[0019] One end of the coil of the relay is electrically connected to the common end of the first group of relay terminals of the fifth relay, the other end of the coil is electrically connected to the digital ground, the common end of each group of relay terminals is electrically connected to the power supply unit, and the normally open end is electrically connected to the gate control signal interface circuit.

[0020] Furthermore, the third switching unit includes:

[0021] A third single-pole double-throw switch, wherein the third relay unit comprises a second relay, wherein the relay comprises at least one group of relay terminals, wherein

[0022] The common end of the third single-pole double-throw switch is electrically connected to the power supply unit, and one throw end is electrically connected to the common end of the first group of relay terminals of the second relay and the FAS feedback signal circuit respectively;

[0023] One end of the coil of the second relay is electrically connected to a normally open end of a group of relay terminals of a relay of the second relay unit.

[0024] Furthermore, the common end of the second group of relay terminals of the second relay is electrically connected to the power supply unit, and the common end of the second group of relay terminals of the sixth relay is electrically connected to the power supply unit.

[0025] Furthermore, the relay circuit further comprises:

[0026] A mode switching unit, wherein the mode switching unit is electrically connected to the normally open end of the first group of relay terminals of the third relay, the IBP input signal circuit and the digital ground respectively.

[0027] Furthermore, a unidirectional diode is connected in reverse parallel between two terminals of the coil of each relay.

[0028] Further, an electro-optical circuit is connected in parallel between two terminals of the coil of the corresponding relay, wherein the electro-optical circuit includes a light-emitting diode and a resistor series circuit, and the relay includes: a first relay, a second relay, a fifth relay and a relay in the second relay unit.

[0029] Furthermore, the normally closed end and the normally open end of the second group of relay terminals of the sixth relay are electrically connected to the state indicating unit.

[0030] Furthermore, the normally closed end and the normally open end of the second group of relay terminals of the second relay are electrically connected to the state indicating unit.

[0031] Another aspect of the utility model provides an emergency control box, wherein the emergency control box in one embodiment includes the above-mentioned relay circuit.

[0032] Furthermore, the emergency control box further comprises:

[0033] A power supply unit, a controller unit and a status indication unit, wherein:

[0034] The power supply unit is electrically connected to the controller unit;

[0035] The controller unit is electrically connected to the first relay unit, the second relay unit, and the third relay, respectively, and is used to collect data and transmit the data to a host computer.

[0036] The working principle of the utility model is as follows:

[0037] According to the signal type of FAS and / or IBP in the actual application scenario, each switch unit of the relay circuit is set, and the relevant relay unit can directly output control signals and / or alarm signals such as fire linkage and emergency status. Furthermore, the controller unit of the emergency control box also collects data from the relevant relay units and transmits it to the host computer for processing. Among them, taking the relay circuit (or emergency control box) as the reference position, the signal types of FAS and / or IBP may include: active input signal, which may be an active normally open signal or an active normally closed signal. If it is an active normally open signal, no signal will be received in normal situation, but a 24V active signal will be received in emergency situation. If it is an active normally closed signal, a 24V active signal will be received in normal situation, but no signal will be received in emergency situation; passive input signal, which may be a passive normally open signal or a passive normally closed signal, that is, the signal is connected through a normally open dry contact or a normally closed dry contact; active output feedback signal, which may be an active normally open signal or an active normally closed signal. If it is an active normally open signal, no signal will be output in normal situation, but a 24V active signal will be output in emergency situation. If it is an active normally closed signal, a 24V active signal will be output in normal situation, but no signal will be output in emergency situation; passive output feedback signal, which may be a passive normally open signal or a passive normally closed signal, that is, the signal is output through a normally open dry contact or a normally closed dry contact.

[0038] Compared with the prior art, the utility model has the following beneficial effects:

[0039] The relay circuit supports multi-function settings, and the emergency control box including the relay circuit can be configured according to the application scenario, thereby improving the adaptability of a single emergency control box to FAS and / or IBP signal types, improving the integration of a single emergency control box, and avoiding the increase in R&D and maintenance costs caused by using multiple different versions of emergency control boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0041] Figure 1 A schematic structural diagram of a relay circuit in one aspect of the utility model is shown;

[0042] Figure 2 A schematic diagram showing the circuit structure of a relay circuit of an optional embodiment of one aspect of the utility model;

[0043] Figure 3 A schematic diagram showing the structure of an emergency control box according to another aspect of the present application;

[0044] The same or similar reference numerals in the drawings represent the same or similar components. DETAILED DESCRIPTION

[0045] The following will further explain the concept, specific structure and technical effects of a relay circuit and an emergency control box provided by the utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the utility model. The embodiments and / or optional embodiments of the utility model are shown therein, and it should be understood that those skilled in the art can modify the utility model described herein and still achieve the beneficial effects of the utility model. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation to the utility model.

[0046] The following is further described in conjunction with specific embodiments.

[0047] like Figure 1 The structure diagram of a relay circuit of one aspect of the utility model is shown, wherein the relay circuit 10 of one embodiment includes:

[0048] A first switching switch unit 101, a first relay unit 102, a second switching switch unit 103, a second relay unit 104, a third switching switch unit 105 and a third relay unit 106, wherein:

[0049] The first switching switch unit 101 is electrically connected to the external system, the power supply unit 20 and the first relay unit 102 respectively, wherein the external system includes an IBP system and / or a FAS system, and the first switching switch unit 101 is used to control the reception of the IBP input signal and / or the FAS input signal output by the external system, and the switch position thereof is determined by the type of the IBP input signal and / or the FAS input signal;

[0050] The first relay unit 102 is electrically connected to the external system, the second switching switch unit 103 and the second relay unit 104 respectively, wherein the first relay unit 102 is used to receive the IBP sampling signal and / or the FAS sampling signal output by the external system, and / or to receive the IBP input signal and / or the FAS input signal, control the output of the emergency state signal and / or the emergency state indication signal, and control the output of the IBP feedback signal through the second switching switch unit 103, and the switch switching position is determined by the type of the IBP feedback signal;

[0051] The second relay unit 104 is electrically connected to the third relay unit 106, and is used to control the gate control signal output according to the emergency state signal, wherein the third relay unit 106 controls the fire linkage indication signal output according to the gate control signal, and controls the FAS feedback signal output through the third switching switch unit 105.

[0052] Among them, by using the relay circuit, the active signal output by the external IBP system can be used as the IBP input signal, or the passive signal output by the external IBP system can be used as the IBP sampling signal, and / or the active signal output by the external FAS system can be used as the FAS input signal, or the passive signal output by the external FAS system can be used as the FAS sampling signal. According to the type of the IBP input signal or the IBP sampling signal, and / or the FAS input signal or the FAS sampling signal, the switching positions of the relevant switches in the first switching switch unit 101 and the third switching switch unit 105 are determined, and the emergency state signal and / or the emergency state indication signal output are controlled by the first relay unit 102, and the IBP feedback signal output is controlled by the second switching switch unit 103 and given to the emergency alarm system; the second relay unit 104 controls the gate (or other emergency brake equipment) control signal output according to the emergency state signal, and the third relay unit 106 controls the fire linkage indication signal output according to the gate control signal, and controls the FAS feedback signal output through the third switching switch unit 105 and gives it to the emergency alarm system. No software configuration is required, and the relevant switch unit and relay unit of the relay circuit can be configured to support different external input signal types and output corresponding signal types, thus improving the integration.

[0053] like Figure 2A schematic diagram of the circuit structure of a relay circuit of an optional embodiment of one aspect of the utility model is shown, wherein the first switching switch unit 101 includes:

[0054] A first single-pole double-throw switch 1011, a second single-pole double-throw switch 1012, a fourth single-pole double-throw switch 1014, a fifth single-pole double-throw switch 1015 and a sixth single-pole double-throw switch 1016; the first relay unit 102 includes a first relay 1021, a third relay 1023, a fourth relay 1024, a fifth relay 1025 and a sixth relay 1026, wherein each relay includes at least one group of relay terminals, wherein the common end of the first single-pole double-throw switch 1011 is electrically connected to the power supply unit 20, and the throw end is electrically connected to the normally closed end and the normally open end of the first group of relay terminals of the first relay 1021 respectively; the common end of the second single-pole double-throw switch 1012 is electrically connected to the first relay 10 One end of the coil of the fourth single-pole double-throw switch 1014 is electrically connected to the IBPC_24V end of the IBP input signal circuit, and the throw ends are electrically connected to the normally closed end and the normally open end of the second group of relay terminals of the third relay 1023; the common end of the fifth single-pole double-throw switch 1015 is electrically connected to the digital ground, and a throw end is electrically connected to one end of the coil of the fifth relay 1025; the common end of the sixth single-pole double-throw switch 1016 is electrically connected to the power supply unit, and the throw ends are electrically connected to the normally closed end and the normally open end of the first group of relay terminals of the fifth relay 1025;

[0055] Among them, the other end of the coil of the first relay 1021 is electrically connected to the FASC_0V end of the FAS input signal circuit, and the common end of the first group of relay terminals of the first relay 1021 is electrically connected to one end of the coil of the third relay 1023 and one end of the coil of the fourth relay 1024 respectively; the other end of the coil of the third relay 1023 is electrically connected to the digital ground, and the common end of the second group of relay terminals is electrically connected to the digital ground; the other end of the coil of the fourth relay 1024 is electrically connected to the digital ground, the common end of the first group of relay terminals is electrically connected to the digital ground, the normally open end is electrically connected to the third relay unit 106, and is connected to the FASF of the FAS feedback signal circuit. _V1GND terminal is electrically connected, and the common terminal and the normally-open terminal in the second group of relay terminals are electrically connected to the FAS sampling signal circuit respectively; the other end of the coil of the fifth relay 1025 is electrically connected to the IBPC_24V terminal of the IBP input signal circuit, the common terminal in the first group of relay terminals is electrically connected to one end of the coil of the sixth relay 1026, the common terminal in the second group of relay terminals is electrically connected to the second switching switch unit 103, and is electrically connected to the IBPF_24V terminal of the IBP feedback signal circuit; the other end of the coil of the sixth relay 1026 is electrically connected to the digital ground, and the common terminal and the normally-open terminal in the first group of relay terminals are electrically connected to the IBP sampling signal circuit respectively.

[0056] Furthermore, the second switching unit 103 includes:

[0057] The seventh single-pole double-throw switch 1031, wherein

[0058] A common terminal of the seventh single-pole double-throw switch 1031 is electrically connected to the power supply unit 20 , and one throw terminal is electrically connected to a common terminal of the second group of relay terminals of the fifth relay 1025 .

[0059] Further, the second relay unit 104 includes:

[0060] At least one relay 1041, wherein the relay 1041 includes at least one set of relay terminals, wherein,

[0061] One end of the coil of relay 1041 is electrically connected to the common end of the first group of relay terminals of the fifth relay 1025, and the other end of the coil is electrically connected to the digital ground. The common end of each group of relay terminals is electrically connected to the power supply unit 20, and the normally open end is electrically connected to the gate control signal interface circuit.

[0062] Among them, the number of relays 1041 included in the second relay unit 104 is related to the number of gate groups in the application scenario. A group of relay terminals of each relay 1041 corresponds to a group of gates. For example, a relay 1041 including a single group of relay terminals can only control one group of gates; a relay 1041 including two groups of relay terminals can control two groups of gates at the same time; a relay 1041 including four groups of relay terminals can control four groups of gates at the same time. Each relay 1041 controls each group of relay terminals of the relay 1041 according to the received emergency state signal EMG24V, outputs a gate control signal to the gate control signal interface circuit, and can control the gate to open.

[0063] Further, the third switching unit 105 includes:

[0064] The third single-pole double-throw switch 1051, the third relay unit 106 includes a second relay 1061, wherein the relay 1061 includes at least one group of relay terminals, wherein

[0065] The common end of the third single-pole double-throw switch 1051 is electrically connected to the power supply unit 20, one throw end is electrically connected to the common end of the first group of relay terminals of the second relay 1061, and is also electrically connected to FASF_24V of the FAS feedback signal circuit;

[0066] One end of the coil of the second relay 1061 is electrically connected to a normally open end of a group of relay terminals of a relay 1041 of the second relay unit 104 .

[0067] Furthermore, the common end of the second group of relay terminals of the second relay 1061 is electrically connected to the power supply unit 20 , and the common end of the second group of relay terminals of the sixth relay 1026 is electrically connected to the power supply unit 20 .

[0068] Furthermore, the relay circuit 10 further includes:

[0069] The mode switching unit 107 is electrically connected to the normally-open end of the first group of relay terminals of the third relay 1023, the IBP input signal circuit and the digital ground respectively.

[0070] The mode switching unit 107 may be a 4-terminal selection switch (knob switch), wherein the 4 terminals are electrically connected to the digital ground, the IBPC_0V terminal of the IBP input signal circuit, the normally open terminal of the first group of relay terminals of the third relay 1023, and the IBPC_24V terminal of the IBP input signal circuit, respectively, wherein the terminal electrically connected to the normally open terminal of the first group of relay terminals of the third relay 1023 is also electrically connected to the IBP sampling signal circuit and the controller unit 30, and the sampling signal data is collected by the controller unit 30, and the IBPC_24V terminal of the IBP input signal circuit is also electrically connected to one end of the coil of the fifth relay 1025. Manual mode and automatic mode may be provided under certain configurations.

[0071] Among them, when the manual mode is selected, the normally open end of the first group of relay terminals of the third relay 1023 connected to the terminals related to the mode switching unit 107 and the IBPC_24V end of the IBP input signal circuit are in a normally open state (disconnected state), and the IBP input signal is connected to the fifth relay 1025 of the relay circuit 10, and will not be connected to the fourth relay 1024 through the mode switching unit 107. When the IBP system sends out an emergency signal, the fifth relay 1025 will be triggered, so that the EMG_24V output by a group of relay terminals of the fifth relay 1025 is 24V, wherein the switch switching positions of the sixth single-pole double-throw switch 1016 and the fifth single-pole double-throw switch 1015 are configured according to the IBP input signal type. If it is active normally open, the common terminal 2 of the sixth single-pole double-throw switch 1016 is connected to the throw terminal 3, and the switch switching position of the fifth single-pole double-throw switch 1015 is that the common terminal 2 is connected to the throw terminal 1; if it is active normally closed, the common terminal 2 of the sixth single-pole double-throw switch 1016 is connected to the throw terminal 1, and the common terminal 2 of the fifth single-pole double-throw switch 1015 is connected to the throw terminal 3), and the other group of relay terminals outputs the IBP feedback signal of 24V (the switch switching position of the seventh single-pole double-throw switch 1031 is configured according to the IBP input signal type. P output feedback signal type configuration, if it is active feedback, the common terminal 2 of the seventh single-pole double-throw switch 1031 is connected to the throw terminal 1, if it is passive feedback, the common terminal 2 of the seventh single-pole double-throw switch 1031 is connected to the throw terminal 3), the 24V EMG_24V signal will trigger the sixth relay 1026, so that a group of relays output an IBP emergency feedback signal to the status display unit 40, displaying the emergency status (for example, the emergency status indicator light is red, and the fire linkage indicator light remains unchanged), and the controller unit 30 electrically connected to another group of relay terminals of the sixth relay 1026 will collect the IBP emergency signal (sampling signal), transmit it to the host computer, report that the IBP system has entered an emergency state, and will also control the second relay unit 103 to output the gate control signal (V1) through the 24V EMG_24V signal. When only the FAS system sends an emergency signal (FASC_24V) but there is no IBP emergency signal, the first relay 1021 will be triggered (the switch position of the second single-pole double-throw switch 1012 is configured according to the FAS input signal type. If it is active, the common terminal 2 and the throw terminal 3 of the second single-pole double-throw switch 1012 are connected), and then the fourth relay 1024 is triggered. The FAS emergency signal (sampling signal) is collected by the controller unit 30 and transmitted to the host computer, but the fifth relay 1025, the sixth relay 1026 and the third relay unit 106 will not be triggered, and no IBP emergency feedback signal and FAS emergency feedback signal are given to the status display unit 40, and the IBP emergency status will not be reported to the host computer.

[0072] When the automatic mode is selected, the mode switching unit 107 is used to connect the relevant terminals, so that a group of relay terminals of the third relay 1023 can be electrically connected to the fifth relay 1025 of the relay circuit 10, and the signal of a group of relay terminals of the third relay 1023 can be transmitted to the fifth relay 1025. When only the FAS system sends an emergency signal (alarm signal), the first relay 1021 will be triggered, and then the third relay 1023 will be triggered, so that a group of relay terminals of the third relay 1023 outputs a linkage IBP emergency signal to trigger the fifth relay 1025, generating EMG_24V, and then triggering the sixth relay 1026, the second relay unit 103 and the gate control signal interface circuit, not only the FAS emergency feedback signal and the IBP emergency feedback signal are given to the status display unit 40, and the FAS emergency status and IBP emergency status are reported to the upper computer, but also the gate control signal is output to control the gate to open.

[0073] In automatic mode, FAS emergency priority is usually lower than IBP emergency. When there is IBP emergency, the gate control signal will be output regardless of whether there is FAS emergency, and IBP emergency will be linked only when there is FAS emergency. When the FAS emergency signal is input, if the IBP emergency is not linked for some reason, the corresponding control signal is not generated (for example, the gate control signal that controls the gate to open), the FAS alarm status will not be displayed, which makes it easier for staff to effectively judge whether the IBP emergency 24V control signal is in place.

[0074] Furthermore, in the relay circuit 10 , a unidirectional diode is connected in reverse parallel between two terminals of the coil of each relay.

[0075] Among them, in the relay circuit 10, a unidirectional diode can be connected in reverse parallel between the two terminals of the coil of each relay as a freewheeling diode, such as STPS340U of STMicroelectronics, which is used to release the residual energy or self-inductance electromotive force in the coil when the relay is powered off, thereby protecting the relay circuit. If the relay is a polarized relay, it should be connected in reverse parallel according to the electrical polarity in the circuit.

[0076] Furthermore, an electro-optical circuit 108 is connected in parallel between two terminals of the coil of the corresponding relay, wherein the electro-optical circuit 108 includes a light-emitting diode and a resistor series circuit, and the relay includes at least: a first relay 1021, a second relay 1061, a fifth relay 1025 and a relay 1041 in the second relay unit.

[0077] Among them, a photoelectric circuit 108 can also be connected in parallel between the two terminals of the coil of the corresponding relay. The photoelectric circuit 108 can be a series circuit composed of a light-emitting diode and an adaptation resistor (such as a 5.1K ohm resistor), which can be used to indicate the working status of the relevant relay, so as to assist R&D personnel in judging the circuit operation status during the development stage, and can also assist operation and maintenance engineers in judging the circuit operation status during operation and maintenance.

[0078] Furthermore, the normally closed end and the normally open end of the second group of relay terminals of the sixth relay 1026 are electrically connected to the state indicating unit 40 .

[0079] The normally open end and the normally closed end of the second group of relay terminals of the sixth relay 1026 are electrically connected to the emergency state indication module (such as the emergency state indicator light) in the state indication unit 40. The emergency state indication module in the indication unit 40, for example, the emergency state indicator light, can be used to display the state related to the IBP emergency situation. Usually, a green light is displayed when there is no emergency situation, a red light is displayed when there is an emergency situation, or an alarm flashing light is displayed.

[0080] Furthermore, the normally closed end and the normally open end of the second group of relay terminals of the second relay 1061 are electrically connected to the state indicating unit 40 .

[0081] The normally open end and the normally closed end of the second group of relay terminals of the second relay 1061 are electrically connected to the fire linkage indication module (such as the fire linkage indicator light) in the status indication unit 40. The status related to the FAS can be displayed by the fire linkage indication module in the indication unit 40, for example, the fire linkage indicator light. Usually, a green light is displayed when there is no FAS alarm, a red light is displayed when there is a FAS alarm, or an alarm flashes.

[0082] like Figure 3 In another aspect shown, an emergency control box is provided, wherein an emergency control box 1 of one embodiment comprises the relay circuit 10 of the above embodiment and / or optional embodiment.

[0083] Among them, the emergency control box 1 can use the active signal output by the external IBP system as the IBP input signal, or the passive signal output by the external IBP system as the IBP sampling signal, and / or use the active signal output by the external FAS system as the FAS input signal, or the passive signal output by the external FAS system as the FAS sampling signal according to the actual application scenario. According to the type of the IBP input signal or the IBP sampling signal, and / or the FAS input signal or the FAS sampling signal, the various switching switch units and relay units of the relay circuit 10 are correspondingly set to coordinate and control the emergency state signal and / or the emergency state indication signal output, the IBP feedback signal output, the gate control signal output, the fire linkage indication signal output and / or the FAS feedback signal output. There is no need for software configuration, and it is entirely possible to support different types of external input signals and output corresponding signal types by configuring the relevant switch units and relay units of the relay circuit in the emergency control box. The integration is improved.

[0084] Furthermore, the emergency control box 1 further comprises:

[0085] A power supply unit 20, a controller unit 30 and a status indication unit 40, wherein:

[0086] The power supply unit 20 is electrically connected to the controller unit 30;

[0087] The controller unit 30 is electrically connected to the first relay unit 102 , the second relay unit 104 , and the third relay unit 106 , respectively, and is used to collect data and transmit it to a host computer.

[0088] In addition to the relay circuit 10 of the above embodiment and / or the optional embodiment, the emergency control box 1 further includes a power supply unit 20 for providing signal power to each active unit or circuit of the emergency control box 1. The power supply unit 20 can be an AC / DC switching power supply, which converts AC mains power into 24V DC power and provides it to the controller unit 30 and the relay circuit 10.

[0089] Among them, in manual mode, when only the FAS emergency signal is received, the relay circuit 10 of the emergency control box 1 will not be linked to generate an IBP emergency signal, so as not to trigger the emergency control of the gate and the response of the status display unit 40, and only report the FAS emergency state to the host computer through sampling of the controller unit 30. When the staff receives the FAS emergency state signal from the host computer, the IBP emergency signal is manually triggered. At this time, the relay circuit 10 triggers the emergency control of the gate and the response of the status display unit 40, and reports the IBP emergency state to the host computer through sampling of the controller unit 30. In automatic mode, when only the FAS emergency signal is received, the relay circuit 10 of the emergency control box 1 will also be linked to generate an IBP emergency signal. In addition to triggering the emergency state response of the FAS and IBP of the status display unit 40, it also triggers the emergency control of the gate, and samples through the controller unit 30, and reports the FAS and IBP emergency states to the host computer at the same time.

[0090] In the present application, active signals are power signals, which can be connected to 24V+ and 24V- (i.e., GND) respectively; passive signals are dry contacts, and the pins short-circuit the signals with each other; normally open signals mean that there is no signal under normal circumstances, and if there is a signal, it indicates that an emergency or abnormal state has occurred or entered; normally closed signals mean that there is always a signal under normal circumstances, and if there is no signal, it indicates that an emergency or abnormal state has occurred or entered.

[0091] Including Figure 2 The emergency control box 1 of the relay circuit 10 shown can have 16*16 configuration combinations (for example, IBP input: active normally open, active normally closed, passive normally open, passive normally closed; FAS input: active normally open, active normally closed, passive normally open, passive normally closed, that is, there are 16 combinations of input. Similarly, there are 16 combinations of output), according to different application scenario requirements, for the signal types (such as active or passive, normally open or normally closed) of different external systems (such as IBP, FAS), and the output signal type (such as active or passive, normally open or normally closed) of the relay circuit 10, which can be applied to a total of 256 application scenario requirements.

[0092] Some exemplary configurations are as follows to match the IBP and FAS input signal types of external systems in different application scenarios.

[0093] Example 1:

[0094] Applicable to active normally open type IBP emergency input and active normally open type FAS input, as well as active type (normally open or normally closed) IBP feedback output and active normally open type FAS feedback output.

[0095] The common terminal 2 and the throwing terminal 3 of the first single-pole double-throw switch 1011 are connected, the common terminal 2 and the throwing terminal 3 of the second single-pole double-throw switch 1012 are connected, the common terminal 2 and the throwing terminal 1 of the third single-pole double-throw switch 1051 are connected, the common terminal 2 and the throwing terminal 1 of the fifth single-pole double-throw switch 1015 are connected, the common terminal 2 and the throwing terminal 1 of the sixth single-pole double-throw switch 1016 are connected, and the common terminal 2 and the throwing terminal 1 of the seventh single-pole double-throw switch 1031 are connected.

[0096] Example 2:

[0097] Applicable to active normally open type IBP emergency input and active normally open type FAS input, as well as passive type (normally open or normally closed) IBP feedback output and active normally open type FAS feedback output.

[0098] The common terminal 2 and the throwing terminal 3 of the first single-pole double-throw switch 1011 are connected, the common terminal 2 and the throwing terminal 3 of the second single-pole double-throw switch 1012 are connected, the common terminal 2 and the throwing terminal 1 of the third single-pole double-throw switch 1051 are connected, the common terminal 2 and the throwing terminal 1 of the fifth single-pole double-throw switch 1015 are connected, the common terminal 2 and the throwing terminal 3 of the sixth single-pole double-throw switch 1016 are connected, and the common terminal 2 and the throwing terminal 3 of the seventh single-pole double-throw switch 1031 are connected.

[0099] Example 3:

[0100] Applicable to active normally closed type IBP emergency input and active normally open type FAS input, as well as active type (normally open or normally closed) IBP feedback output and active normally open type FAS feedback output.

[0101] The common terminal 2 and the throwing terminal 3 of the first single-pole double-throw switch 1011 are connected, the common terminal 2 and the throwing terminal 3 of the second single-pole double-throw switch 1012 are connected, the common terminal 2 and the throwing terminal 1 of the third single-pole double-throw switch 1051 are connected, the common terminal 2 and the throwing terminal 1 of the fourth single-pole double-throw switch 1014 are connected, the common terminal 2 and the throwing terminal 1 of the fifth single-pole double-throw switch 1015 are connected, the common terminal 2 and the throwing terminal 3 of the sixth single-pole double-throw switch 1016 are connected, and the common terminal 2 and the throwing terminal 1 of the seventh single-pole double-throw switch 1031 are connected.

[0102] Example 4:

[0103] Applicable to active normally closed type IBP emergency input and active normally open type FAS input, as well as passive type (normally open or normally closed) IBP feedback output and active normally open type FAS feedback output.

[0104] The common terminal 2 and the throwing terminal 3 of the first single-pole double-throw switch 1011 are connected, the common terminal 2 and the throwing terminal 3 of the second single-pole double-throw switch 1012 are connected, the common terminal 2 and the throwing terminal 1 of the third single-pole double-throw switch 1051 are connected, the common terminal 2 and the throwing terminal 1 of the fourth single-pole double-throw switch 1014 are connected, the common terminal 2 and the throwing terminal 1 of the fifth single-pole double-throw switch 1015 are connected, the common terminal 2 and the throwing terminal 3 of the sixth single-pole double-throw switch 1016 are connected, and the common terminal 2 and the throwing terminal 3 of the seventh single-pole double-throw switch 1031 are connected.

[0105] Example 5:

[0106] Applicable to passive normally open type IBP emergency input and active normally open type FAS input, as well as active type (normally open or normally closed) IBP feedback output and active normally open type FAS feedback output.

[0107] The common terminal 2 and the throwing terminal 3 of the first single-pole double-throw switch 1011 are connected, the common terminal 2 and the throwing terminal 3 of the second single-pole double-throw switch 1012 are connected, the common terminal 2 and the throwing terminal 1 of the third single-pole double-throw switch 1051 are connected, the common terminal 2 and the throwing terminal 1 of the fifth single-pole double-throw switch 1015 are connected, the common terminal 2 and the throwing terminal 1 of the sixth single-pole double-throw switch 1016 are connected, and the common terminal 2 and the throwing terminal 1 of the seventh single-pole double-throw switch 1031 are connected.

[0108] Example 6:

[0109] Applicable to passive normally open type IBP emergency input and active normally open type FAS input, as well as passive type (normally open or normally closed) IBP feedback output and active normally open type FAS feedback output.

[0110] The common terminal 2 and the throwing terminal 3 of the first single-pole double-throw switch 1011 are connected, the common terminal 2 and the throwing terminal 3 of the second single-pole double-throw switch 1012 are connected, the common terminal 2 and the throwing terminal 1 of the third single-pole double-throw switch 1051 are connected, the common terminal 2 and the throwing terminal 1 of the fifth single-pole double-throw switch 1015 are connected, the common terminal 2 and the throwing terminal 3 of the sixth single-pole double-throw switch 1016 are connected, and the common terminal 2 and the throwing terminal 3 of the seventh single-pole double-throw switch 1031 are connected.

[0111] It should be noted that the above contents and embodiments or examples are only used to illustrate the technical solution of the utility model, and do not have any limiting effect on the utility model. Those skilled in the art should understand that any form of equivalent replacement or modification of the technical solution and technical content disclosed in the utility model without departing from the scope of the technical solution of the utility model shall not depart from the spirit and scope of the technical solution of the utility model, and shall be covered by the protection scope of the utility model.

[0112] In addition, it is obvious that the word "comprising" does not exclude that the circuits, devices, and equipment involved in the utility model may also include other components, units or modules, circuits, and devices, and the singular does not exclude the plural. Multiple components, units or modules, and circuits stated in the claims can also be implemented with one component, unit or module, or circuit. The words first, second, etc. are used to indicate names, and do not indicate any specific order.

Claims

1. A relay circuit, wherein: The circuit comprises: a first switching switch unit, a first relay unit, a second switching switch unit, a second relay unit, a third switching switch unit and a third relay unit, wherein: The first switching switch unit is electrically connected to an external system, a power supply unit and the first relay unit respectively, wherein the external system includes an IBP system and / or a FAS system, and the first switching switch unit is used to control the reception of an IBP input signal and / or a FAS input signal output by the external system, and the switch position thereof is determined by the type of the IBP input signal and / or the FAS input signal; The first relay unit is electrically connected to the external system, the second switching switch unit and the second relay unit respectively, wherein the first relay unit is used to receive the IBP sampling signal and / or the FAS sampling signal output by the external system, and / or to receive the IBP input signal and / or the FAS input signal, control the output of the emergency state signal and / or the emergency state indication signal, and control the output of the IBP feedback signal through the second switching switch unit, and the switch position is determined by the type of the IBP feedback signal; The second relay unit is electrically connected to the third relay unit, and is used to control the gate control signal output according to the emergency state signal, wherein the third relay unit controls the fire linkage indication signal output according to the gate control signal, and controls the FAS feedback signal output through the third switching switch unit.

2. The circuit according to claim 1, characterized in that The first switching unit comprises: a first single-pole double-throw switch, a second single-pole double-throw switch, a fourth single-pole double-throw switch, a fifth single-pole double-throw switch and a sixth single-pole double-throw switch; the first relay unit includes a first relay, a third relay, a fourth relay, a fifth relay and a sixth relay, wherein each relay includes at least one group of relay terminals, wherein the common end of the first single-pole double-throw switch is electrically connected to the power supply unit, and the throw end is electrically connected to the normally closed end and the normally open end of the first group of relay terminals of the first relay unit respectively; the common end of the second single-pole double-throw switch is electrically connected to one end of the coil of the first relay The common end of the fourth single-pole double-throw switch is electrically connected to the IBP input signal circuit, and the throw ends are electrically connected to the normally closed end and the normally open end of the second group of relay terminals of the third relay; the common end of the fifth single-pole double-throw switch is electrically connected to the digital ground, and one throw end is electrically connected to one end of the coil of the fifth relay; the common end of the sixth single-pole double-throw switch is electrically connected to the power supply unit, and the throw ends are electrically connected to the normally closed end and the normally open end of the first group of relay terminals of the fifth relay; Among them, the other end of the coil of the first relay is electrically connected to the FAS input signal circuit, and the common end of the first group of relay terminals of the first relay is electrically connected to one end of the coil of the third relay and one end of the coil of the fourth relay respectively; the other end of the coil of the third relay is electrically connected to the digital ground, and the common end of the second group of relay terminals is electrically connected to the digital ground; the other end of the coil of the fourth relay is electrically connected to the digital ground, the common end of the first group of relay terminals is electrically connected to the digital ground, the normally open end is electrically connected to the third relay unit, and the common end and the normally open end of the second group of relay terminals are electrically connected to the FAS sampling signal circuit respectively; the other end of the coil of the fifth relay is electrically connected to the IBP input signal circuit, the common end of the first group of relay terminals is electrically connected to one end of the coil of the sixth relay, and the common end of the second group of relay terminals is electrically connected to the second switching switch unit; the other end of the coil of the sixth relay is electrically connected to the digital ground, and the common end and the normally open end of the first group of relay terminals are electrically connected to the IBP sampling signal circuit respectively.

3. The circuit according to claim 2, characterized in that The second switching unit comprises: The seventh single-pole double-throw switch, wherein The common end of the seventh single-pole double-throw switch is electrically connected to the power supply unit, and one throw end is electrically connected to the common end of the second group of relay terminals of the fifth relay.

4. The circuit according to claim 2, characterized in that The second relay unit comprises: At least one relay, wherein the relay comprises at least one set of relay terminals, wherein One end of the coil of the relay is electrically connected to the common end of the first group of relay terminals of the fifth relay, the other end of the coil is electrically connected to the digital ground, the common end of each group of relay terminals is electrically connected to the power supply unit, and the normally open end is electrically connected to the gate control signal interface circuit.

5. The circuit according to claim 4, characterized in that The third switching unit comprises: A third single-pole double-throw switch, wherein the third relay unit comprises a second relay, wherein the relay comprises at least one group of relay terminals, wherein The common end of the third single-pole double-throw switch is electrically connected to the power supply unit, and one throw end is electrically connected to the common end of the first group of relay terminals of the second relay and the FAS feedback signal circuit respectively; One end of the coil of the second relay is electrically connected to a normally open end of a group of relay terminals of a relay of the second relay unit.

6. The circuit according to claim 5, characterized in that The common end of the second group of relay terminals of the second relay is electrically connected to the power supply unit, and the common end of the second group of relay terminals of the sixth relay is electrically connected to the power supply unit.

7. The circuit according to claim 6, characterized in that The circuit further comprises: A mode switching unit, wherein the mode switching unit is electrically connected to the normally open end of the first group of relay terminals of the third relay, the IBP input signal circuit and the digital ground respectively.

8. The circuit according to any one of claims 2 to 7, characterized in that A unidirectional diode is connected in reverse parallel between the two terminals of the coil of each relay.

9. The circuit according to claim 8, characterized in that An electro-optical circuit is connected in parallel between two terminals of the coil of the corresponding relay, wherein the electro-optical circuit includes a light emitting diode and a resistor series circuit, and the relay includes: a first relay, a second relay, a fifth relay and a relay in the second relay unit.

10. The circuit according to claim 9, characterized in that The normally closed end and the normally open end of the second group of relay terminals of the sixth relay are electrically connected to the state indicating unit.

11. The circuit according to claim 9, characterized in that The normally closed end and the normally open end of the second group of relay terminals of the second relay are electrically connected to the state indicating unit.

12. An emergency control box, characterized in that: The emergency control box comprises the circuit as claimed in any one of claims 1 to 11.

13. The emergency control box according to claim 12, characterized in that: The emergency control box also includes: A power supply unit, a controller unit and a status indication unit, wherein: The power supply unit is electrically connected to the controller unit; The controller unit is electrically connected to the first relay unit, the second relay unit, and the third relay, respectively, and is used to collect data and transmit the data to a host computer.

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