Nuclear power plant fault emergency guarantee device

Abstract

The utility model relates to a nuclear power plant fault emergency guarantee device comprising a communication interface unit used for connecting a telephone network system; two communication service units; the converged communication unit comprises a first control unit connected with the two communication service units and a first audio processing unit connected with the first control unit; and the fault emergency unit is connected with the first control unit, the first audio processing unit and the communication interface unit. The emergency voice communication link can be established when the converged communication unit or the two communication service units fail, so that the situation that each system of the nuclear power plant misses the optimal abnormal processing opportunity due to communication function loss is reduced, and the safety of the nuclear power plant is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power plant communication, in particular to a nuclear power plant fault emergency guarantee device. Background Art

[0002] Due to the high safety requirements of nuclear power plants, the real-time status, accidents, abnormal conditions, etc. of each system in the nuclear power plant need to be communicated in a timely manner, so that the management personnel of each system can efficiently execute response measures to handle the abnormalities. Since the systems in the nuclear power plant are widely distributed, currently, the nuclear power plant usually uses a public switched telephone network system (abbreviated as PSTN system) to achieve communication, thus having the following defects: when a communication server in the telephone network system fails (such as crashing), a line fails, a service process freezes, a telephone set fails, etc., the communication function may be lost, which may cause each system in the nuclear power plant to miss the best opportunity to handle abnormalities, deteriorate the abnormalities in the nuclear power plant, and is not conducive to the safety of the nuclear power plant. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a nuclear power plant fault emergency guarantee device.

[0004] The technical solution adopted by the utility model to solve its technical problem is to construct a nuclear power plant fault emergency guarantee device, including:

[0005] A communication interface unit for connecting to a telephone network system;

[0006] Two communication service units connected to the communication interface unit;

[0007] A converged communication unit, which includes a first control unit connected to the two communication service units and used to realize communication information interaction with the telephone network system through the two communication service units and periodically output a communication normal signal capable of indicating that the converged communication unit and at least one of the communication service units are normal, and a first audio processing unit connected to the first control unit and used to collect sounds and play voices; and

[0008] A fault emergency unit connected to the first control unit, the first audio processing unit and the communication interface unit and used to form an emergency voice communication link with the communication interface unit through the first audio processing unit when the communication normal signal is not received within a set period.

[0009] Preferably, the converged communication unit further includes:

[0010] A SIP telephone connected to the first control unit; and

[0011] A second audio processing unit connected to the SIP telephone;

[0012] The fault emergency unit includes:

[0013] An IAD voice gateway connected to the first control unit; and

[0014] A second control unit connected to the first control unit, the IAD voice gateway, the communication interface unit, and the first audio processing unit, and configured to form an emergency voice communication link through the first audio processing unit when the communication normal signal is not received within a set period.

[0015] Preferably, the second control unit includes:

[0016] A first relay, whose normally closed contact is connected to the first end of the communication interface unit, whose normally open contact is connected to the first end of the IAD voice gateway, and whose common contact is connected to the first end of the first audio processing unit;

[0017] A second relay, whose normally closed contact is connected to the second end of the communication interface unit, whose normally open contact is connected to the second end of the IAD voice gateway, and whose common contact is connected to the second end of the first audio processing unit;

[0018] A processor connected to the exciting coils of the first relay and the second relay and the first control unit, and configured to control the first relay and the second relay to lose excitation when the communication normal signal is not received within a set period.

[0019] Preferably, the second control unit further includes:

[0020] A redundant relay, whose exciting coil is connected to the processor.

[0021] Preferably, the second control unit further includes:

[0022] A first optocoupler connected between the processor and the exciting coil of the first relay;

[0023] A second optocoupler connected between the processor and the exciting coil of the second relay; and

[0024] A third optocoupler connected between the processor and the exciting coil of the redundant relay.

[0025] Preferably, the second control unit further includes:

[0026] A control switch connected to the processor.

[0027] Preferably, each communication service unit includes:

[0028] A gateway connected to the communication interface unit; and

[0029] A communication server connected to the gateway.

[0030] Preferably, the connection point between the gateway and the communication server included in one communication service unit is also connected to the connection point between the gateway and the communication server included in another communication service unit.

[0031] Preferably, the first audio processing unit includes:

[0032] A telephone connected to the first control unit and the second control unit; and

[0033] A wireless phone connected in parallel with the telephone.

[0034] Preferably, the converged communication unit further includes:

[0035] A display connected to the first control unit;

[0036] A first serial port unit connected to the first control unit; and

[0037] A first housing for accommodating the first control unit, the first audio processing unit, the SIP phone, the second audio processing unit, the display, and the first serial port unit;

[0038] The fault emergency unit further includes:

[0039] A second serial port unit connected between the first serial port unit and the second control unit; and

[0040] A second housing for accommodating the IAD voice gateway, the second control unit, and the second serial port unit.

[0041] Implementing the present utility model has the following beneficial effects: providing a nuclear power plant fault emergency guarantee device, which can utilize the fault emergency unit to form an emergency voice communication link between the first audio processing unit and the communication interface unit when both the converged communication unit or two communication service units fail. In this way, users can use the emergency voice communication link to conduct voice communication with the telephone network system, reducing the loss of the best opportunity for each system of the nuclear power plant to handle abnormalities due to the loss of communication functions, and helping to improve the safety of the nuclear power plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present utility model will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0043] Figure 1 is a circuit structure block diagram of a nuclear power plant fault emergency guarantee device in some embodiments of the present utility model;

[0044] Figure 2 is a circuit structure block diagram of a communication service unit in some embodiments of the present utility model;

[0045] Figure 3 It is the circuit structure block diagram of the communication service unit in some other embodiments of the present utility model;

[0046] Figure 4 It is the circuit schematic diagram of the fault emergency unit in some embodiments of the present utility model. Detailed implementation manners

[0047] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the detailed implementation manners of the present utility model will now be described in detail with reference to the accompanying drawings.

[0048] In the following description, it should be understood that the orientation or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings and are constructed and operated in a specific orientation. This is only for the convenience of describing the technical solution and does not indicate that the indicated devices or elements must have a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0049] See Figure 1 , the present utility model provides a fault emergency guarantee device for a nuclear power plant. The device includes a communication interface unit 1, a first audio processing unit 32, a fusion communication unit 3, a fault emergency unit 4, and two communication service units 2.

[0050] Please see Figure 1 , the communication interface unit 1 is used to connect to the telephone network system. Since a nuclear power plant includes multiple systems, such as a reactor system, a coolant system, and a chemical and volume control system, etc., and the various systems are distributed differently, some systems are equipped with dedicated monitoring rooms to be managed by corresponding professional personnel. Therefore, the staff between the various systems generally communicate through the telephone network system, and the communication interface unit 1 is a device for realizing mutual telephone communication between the various systems and can be an existing telephone switch.

[0051] Please see Figure 1 , the two communication service units 2 are connected to the communication interface unit 1, and the function of the communication service unit 2 is to realize the connection between the telephone network system and the fusion communication unit 3.

[0052] Furthermore, as Figure 2As shown in the figure, each communication service unit 2 may include a gateway 21 and a communication server 22. The gateway 21 is connected to the communication interface unit 1 to perform protocol conversion on communication information from and sent to the telephone network system, enabling the telephone network system to interact with the converged communication unit 3. The gateway may be a gateway with the model number NC-MG930 generated by Laixin Communication Technology Co., Ltd. The communication server 22 is connected to the gateway 21. The communication server 22 is used to process (including storing and processing network tasks, etc.) the communication information from and transmitted to the gateway 21. In addition, the communication server 22 may be a server with the model number SR258 generated by Lenovo.

[0053] In some embodiments, as Figure 3 shown, the connection point between the gateway 21 and the communication server 22 included in one communication service unit 2 is also connected to the connection point between the gateway 21 and the communication server 22 included in another communication service unit 2. It can be understood that in this embodiment, when a situation where the gateway 21 included in one communication service unit 2 and the communication server 22 included in another communication service unit 2 both fail occurs, the non-failed gateway 21 and communication server 22 can form a "temporary communication service unit", which can improve the reliability and security of the device.

[0054] Please refer to Figure 1 , the converged communication unit 3 may include a first control unit 31 and a first audio processing unit 32.

[0055] The first control unit 31 is connected to two communication service units 2. The first control unit 31 is used to realize communication information interaction with the telephone network system through the two communication service units 2 and periodically output a communication normal signal indicating that the converged communication unit 3 and at least one communication service unit 2 are normal. Specifically, the first control unit 31 may be an existing single-chip microcomputer or microprocessor (MCU). By running an existing watchdog program, when it is determined that at least one of the two communication service units 2 can operate normally, the first control unit 31 will input a communication normal signal to the fault emergency unit 4 after each interval of a cycle (such as 10 seconds to 1 minute). It should be noted that in Figure 3 the shown embodiment, when the non-failed gateway 21 and communication server 22 can form at least one "temporary communication service unit", the first control unit 31 will still determine that at least one of the two communication service units 2 is operating normally.

[0056] The first audio processing unit 32 is connected to the first control unit 31. The first audio processing unit 32 is used to collect the user's voice and play voice. Specifically, as Figure 4As shown, the first audio processing unit 32 may include a telephone 321 and a wireless phone 322. The telephone 321 is connected to the first control unit 31 and the second control unit 42, and the wireless phone 322 is connected in parallel with the telephone 321. Among them, the telephone 321 may be an existing telephone, and the wireless phone 322 may be an existing wireless telephone.

[0057] In some embodiments, as Figure 1 shown, the converged communication unit 3 further includes a SIP phone 33 and a second audio processing unit 34. The SIP phone 33 is connected to the first control unit 31 and the second audio processing unit 34. The SIP phone 33 may be an existing SIP phone, and the second audio processing unit may be an existing handle, which can collect the user's voice and play voice for the user. The SIP phone 33 can drive the second audio processing unit 34 to work.

[0058] In some embodiments, as Figure 1 shown, the converged communication unit 3 may further include a display 35, a first serial port unit 36, and a first housing 37. The display 35 is connected to the first control unit 31. The first control unit 31 controls the display 35 to work to display relevant content of telephone communication, including incoming calls, phone books, text messages, etc. The first serial port unit 36 is connected to the first control unit 31. The first serial port unit 36 may be an existing RS232 serial port circuit, which can send a communication normal signal to the fault emergency unit 4. The first housing 37 is used to accommodate the first control unit 31, the first audio processing unit 32, the SIP phone 33, the second audio processing unit 34, the display 35, and the first serial port unit 36.

[0059] In some embodiments, the converged communication unit 3 may include a converged communication terminal of model M22 generated by Youlai Communication Technology Co., Ltd. The converged communication terminal M22 includes modules such as a control circuit, a SIP phone, and a handle. The functions of the converged communication unit 3 can be implemented through the converged communication terminal M22. Specifically, the control circuit in the converged communication terminal M22 can replace the first control unit 31, and the handle can replace the second audio processing unit 34.

[0060] Please refer to Figure 1 , the fault emergency unit 4 is connected to the first control unit 31, the first audio processing unit 32, and the communication interface unit 1. The fault emergency unit 4 is used to form an emergency voice communication link with the communication interface unit 1 through the first audio processing unit 32 when no communication normal signal is received within a set period, so that the user can temporarily use the first audio processing unit 32 to conduct voice communication with the nuclear power plant communication system.

[0061] In some embodiments, as Figure 1As shown, the fault emergency unit 4 includes an IAD voice gateway 41 and a second control unit 42.

[0062] Please refer to Figure 1 , the IAD voice gateway 41 is connected to the first control unit 31. The IAD voice gateway 41 can be an existing IAD voice gateway, and its function is to drive the first audio processing unit 32 to work in an analog IP phone. That is, when the converged communication unit 3 can operate normally, users can not only conduct voice communications through the first audio processing unit 32 and the second audio processing unit 34 simultaneously to handle the situation where multiple calls come in at the same time.

[0063] Please refer to Figure 1 , the second control unit 42 is connected to the first control unit 31, the IAD voice gateway 41, the communication interface unit 1, and the first audio processing unit 32. The second control unit 42 is used to form an emergency voice communication link through the first audio processing unit 32 when the communication normal signal is not received within the set period. When the second control unit 42 does not receive the communication normal signal within the set period, it indicates that the converged communication unit 3 has failed (such as program freeze, system crash, etc.), or both communication service units 2 have failed (such as both gateways 21 have failed, both communication servers 22 have failed, etc.). In this case, the first control unit 31 will not send the communication normal signal to the second control unit 42 within the set period. At this time, the second control unit 42 will control the first audio processing unit 32 to communicate with the communication interface unit 1 to form an emergency voice communication link, enabling users to conduct voice communications with the nuclear power plant communication system through the first audio processing unit 32.

[0064] In some embodiments, such as Figure 4As shown, the second control unit 42 may include a first relay 421, a second relay 422, and a processor 424. The normally closed contact of the first relay 421 is connected to the first end of the communication interface unit 1, the normally open contact of the first relay 421 is connected to the first end of the IAD voice gateway 41, and the common contact of the first relay 421 is connected to the first end of the first audio processing unit 32. The normally closed contact of the second relay 422 is connected to the second end of the communication interface unit 1, the normally open contact of the second relay 422 is connected to the second end of the IAD voice gateway 41, and the common contact of the second relay 422 is connected to the second end of the first audio processing unit 32. The processor 424 is connected to the exciting coils of the first relay 421 and the second relay 422 and the first control unit 31. The processor 424 is configured to control the first relay 421 and the second relay 422 to demagnetize when no normal communication signal is received within a set period, so that the first end and the second end of the communication interface unit 1 are sequentially connected to the first end and the second end of the first audio processing unit 32 through the first relay 421 and the second relay 422, thereby forming the emergency voice communication link. When a normal communication signal is received within the set period, the first relay 421 and the second relay 422 are controlled to be excited, so that the IAD voice gateway 41 drives the first audio processing unit 32 for normal voice communication. Among them, the processor 424 may be an existing single-chip microcomputer or microprocessor (MCU).

[0065] In some embodiments, as Figure 4 shown, the second control unit 42 may further include a redundant relay 423. The exciting coil of the redundant relay 423 is connected to the processor 424, and the normally open contact, normally closed contact, and common contact of the redundant relay 423 are left floating. The function of the redundant relay 423 is that when the first relay 421 or the second relay 422 fails, the user can manually change the box and use the redundant relay 423 to replace the faulty first or second relay, so as to further ensure that the user can successfully establish an emergency voice communication link, which helps to improve the safety of the nuclear power plant.

[0066] Since the exciting voltages of the first, second, and redundant relays are relatively high in some embodiments, in order to reduce the risk of damage to the processor 424 due to high voltage, in some embodiments, as Figure 4As shown, the second control unit 42 may further include a first optocoupler 425, a second optocoupler 426, and a third optocoupler 427. The first optocoupler 425 is connected between the processor 424 and the excitation coil of the first relay 421, the second optocoupler 426 is connected between the processor 424 and the excitation coil of the second relay 422, and the third optocoupler 427 is connected between the processor 424 and the excitation coil of the redundant relay 423. In this embodiment, the functions of the first optocoupler 425, the second optocoupler 426, and the third optocoupler 427 are to enable the second control unit 42 to control the excitation or demagnetization of the corresponding relay through isolation control, achieving the effect of controlling high-voltage equipment with low-voltage signals.

[0067] It should be noted that the connection methods and control principles of the first to third optocouplers and the corresponding relays are similar. The following will take the first optocoupler 425 as an example to elaborate on the specific connection relationship and control principle between the optocoupler and the corresponding relay: The anode of the light-emitting body of the first optocoupler 425 is connected to a first DC voltage (such as 3.3V), the processor 424 is connected to the cathode of the light-emitting body of the first optocoupler 425, one end of the excitation coil of the first relay 421 is connected to a second DC voltage (such as 12V), and the other end is connected to the ground through the light-receiving body of the first optocoupler 425. When the processor 424 outputs a low level to the cathode of the light-emitting body of the first optocoupler 425, the light-receiving body of the first optocoupler 425 conducts, thereby controlling the excitation of the first relay 421. When the processor 424 outputs a high level to the cathode of the light-emitting body of the first optocoupler 425, the light-receiving body of the first optocoupler 425 turns off, thereby controlling the demagnetization of the first relay 421.

[0068] In some embodiments, as Figure 1 shown, the fault emergency unit 4 may further include a second serial port unit 43 and a second housing 44. The second serial port unit 43 is connected between the first serial port unit 36 and the second control unit 42 to obtain the communication normal signal from the first control unit 31. The second housing 44 is used to accommodate the IAD voice gateway 41, the second control unit 42, and the second serial port unit 43. Among them, the second serial port unit 43 may be an existing RS232 serial port circuit.

[0069] In some embodiments, as Figure 4As shown in the figure, the second control unit 42 further includes an AC-DC power module 45, a control switch 46, and a DC-DC power module 47. The input end of the AC-DC power module 45 is connected to the commercial power supply. The output end of the AC-DC power module 45 is connected to the input end of the DC-DC power module 47 through the control switch 46. The output end of the DC-DC power module 47 is connected to the processor 424. Among them, the AC-DC power module 45 can be an existing AC-DC switching power supply, and the DC-DC power module 47 can be an existing DC-DC switching power supply. The function of the control switch 46 is to control the conduction or disconnection of the line between the AC-DC power module 45 and the DC-DC power module 47. It can be understood that when the user needs to forcibly establish an emergency voice communication link, the connection between the AC-DC power module 45 and the DC-DC power module 47 can be disconnected by operating the control switch 46, so that the entire second control unit 42 loses power. Then, the communication interface unit 1 and the first audio processing unit 32 form an emergency voice communication link through the normally closed contacts and common contacts of the first relay 421 and the second relay 422.

[0070] Implementing the technical solution of the present utility model can, when both the converged communication unit or two communication service units fail, use the fault emergency unit to form an emergency voice communication link between the first audio processing unit and the communication interface unit. In this way, users can use the emergency voice communication link to conduct voice communication with the telephone network system, reducing the loss of the best opportunity for each system of the nuclear power plant to handle abnormalities due to the loss of communication functions, and helping to improve the safety of the nuclear power plant.

[0071] It can be understood that the above embodiments only represent the preferred implementation modes of the present utility model. The description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present utility model shall fall within the scope covered by the claims of the present utility model.

Claims

1. A nuclear power plant fault emergency guarantee device, characterized in that Comprising: A communication interface unit (1) for connecting to a telephone network system; Two communication service units (2) connected to the communication interface unit (1); A converged communication unit (3), the converged communication unit (3) includes a first control unit (31) connected to the two communication service units (2) for realizing communication information interaction with the telephone network system through the two communication service units (2) and outputting a communication normal signal, and a first audio processing unit (32) connected to the first control unit (31) for collecting sounds and playing voices; And A fault emergency unit (4) connected to the first control unit (31), the first audio processing unit (32) and the communication interface unit (1), for forming an emergency voice communication link with the communication interface unit (1) through the first audio processing unit (32) when the communication normal signal is not received.

2. The nuclear power plant fault emergency guarantee device according to claim 1, wherein The converged communication unit (3) further includes: A SIP phone (33) connected to the first control unit (31); and A second audio processing unit (34) connected to the SIP phone (33); The fault emergency unit (4) includes: An IAD voice gateway (41) connected to the first control unit (31); and A second control unit (42) connected to the first control unit (31), the IAD voice gateway (41), the communication interface unit (1) and the first audio processing unit (32), for forming an emergency voice communication link through the first audio processing unit (32) when the communication normal signal is not received within a set period.

3. The nuclear power plant fault emergency guarantee device according to claim 2, characterized in that, The second control unit (42) includes: A first relay (421), whose normally closed contact is connected to the first end of the communication interface unit (1), whose normally open contact is connected to the first end of the IAD voice gateway (41), and whose common contact is connected to the first end of the first audio processing unit (32); A second relay (422), whose normally closed contact is connected to the second end of the communication interface unit (1), whose normally open contact is connected to the second end of the IAD voice gateway (41), and whose common contact is connected to the second end of the first audio processing unit (32); A processor (424) connected to the excitation coils of the first relay (421) and the second relay (422) and the first control unit (31), for controlling the first relay (421) and the second relay (422) to demagnetize when the communication normal signal is not received within a set period.

4. The nuclear power plant fault emergency guarantee device according to claim 3, characterized in that, The second control unit (42) further includes: A redundant relay (423), whose excitation coil is connected to the processor (424).

5. The nuclear power plant fault emergency guarantee device according to claim 4, characterized in that, The second control unit (42) further includes: A first optocoupler (425) connected between the processor (424) and the excitation coil of the first relay (421); A second optocoupler (426) connected between the processor (424) and the excitation coil of the second relay (422); and A third optocoupler (427) connected between the processor (424) and the excitation coil of the redundant relay (423).

6. The nuclear power plant fault emergency guarantee device according to claim 3, characterized in that, The second control unit (42) further includes: A control switch (46) connected to the processor (424).

7. The nuclear power plant fault emergency support device according to claim 2, characterized in that Each of the communication service units (2) includes: A gateway (21) connected to the communication interface unit (1); and A communication server (22) connected to the gateway (21).

8. The nuclear power plant fault emergency support device according to claim 7, wherein, The connection point between the gateway (21) and the communication server (22) included in one of the communication service units (2) is also connected to the connection point between the gateway (21) and the communication server (22) included in another communication service unit (2).

9. The nuclear power plant fault emergency guarantee device according to claim 2, wherein The first audio processing unit (32) includes: A telephone (321) connected to the first control unit (31) and the second control unit (42); and A wireless phone (322) connected in parallel with the telephone (321).

10. The nuclear power plant fault emergency guarantee device according to any one of claims 2 to 9, characterized in that, The converged communication unit (3) further includes: A display (35) connected to the first control unit (31); A first serial port unit (36) connected to the first control unit (31); and A first housing (37) housing the first control unit (31), the first audio processing unit (32), the SIP phone (33), the second audio processing unit (34), the display (35), and the first serial port unit (36); The fault emergency unit (4) further includes: A second serial port unit (43) connected between the first serial port unit (36) and the second control unit (42); and A second housing (44) housing the IAD voice gateway (41), the second control unit (42), and the second serial port unit (43).

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