A nuclear power plant power transmission safety management and control system

Abstract

The present invention belongs to the field of industrial safety technology, and specifically relates to a nuclear power plant power transmission safety management and control system. In the present invention, the outdoor Lora gateway uses Lora 4700MHz radio frequency signals to communicate with the Lora electronic ink screen arranged outdoors to transmit the displacement information of the electronic ink screen; the application server and the outdoor Lora gateway communicate using optical fiber hard wiring to transmit personnel operation information and electronic ink screen displacement information; the application server and the production safety management platform transmit information via the Internet, the application server is connected to the wireless AP in the nuclear island via optical fiber / Ethernet, the wireless AP in the nuclear island is connected to the mobile terminal, the POE_OUT interface on the wireless AP in the nuclear island realizes the power supply and network signal transmission of the indoor Bluetooth base station, and the Bluetooth base station transmits 2.4G radio frequency signals to communicate with the low-power Bluetooth electronic ink screen. The present invention realizes the visualization and traceability of the entire power transmission process, ensuring that the entire test power transmission operation process is accurate and controllable.

Description

Technical Field

[0001] The present invention belongs to the technical field of industrial safety, and in particular relates to a power transmission safety management and control system for a nuclear power plant. Background Art

[0002] During the pump / motor installation phase of a nuclear power plant, commissioning work is prone to human errors due to the noisy on-site environment, incomplete signage, and complex staff composition. This can lead to people going to the wrong interval and powering the wrong equipment during power transmission, resulting in equipment damage and casualties.

[0003] A single nuclear power unit contains approximately 1,000 pump / motor units, with the majority of commissioning occurring during the installation phase (within 12 months). Traditionally, during pump / motor commissioning and power transmission, the person in charge of the commissioning work on the load side communicates with the power transmission operator on the power switch side via intercom. Due to the noisy environment during construction, and the fact that power transmission specialists often handle multiple commissioning tasks simultaneously, information miscommunication, incorrect intervals, and incorrect power transmission targets are prone to occur, posing a serious threat to personnel and equipment safety.

[0004] Considering the effectiveness of on-site power transmission information during the installation phase, relying solely on sound as the sole information transmission medium is not conducive to ensuring power transmission safety during commissioning. To improve the safety of commissioning power transmission operations during nuclear power site construction, reduce the probability of power transmission errors by on-site personnel, and ensure the safety of on-site equipment and personnel, a nuclear power plant power transmission safety management and control method based on electronic ink screen technology is proposed. Summary of the Invention

[0005] The present invention solves the technical problem by proposing a nuclear power plant power transmission safety management and control system, which realizes the effectiveness of information transmission during the test power transmission process through multiple means such as text, sound and light, and realizes the verification of the logical mapping relationship between the upstream power switch and the downstream load (pump / motor) through QR code technology to ensure the accuracy of the upstream and downstream correspondence. The real-time information recording and display in the background makes the whole power transmission process visual and traceable, thereby ensuring that the entire test power transmission operation process is accurate and controllable.

[0006] The technical solution adopted in the present invention is:

[0007] A nuclear power plant power transmission safety management and control system includes a Lora electronic ink screen, an outdoor Lora gateway, an application server, a safe production management platform, a wireless access point (AP) in the nuclear island, a mobile terminal, a Bluetooth base station, and a Bluetooth electronic ink screen. The outdoor Lora gateway uses Lora 4700MHz radio frequency signals to communicate with the Lora electronic ink screen arranged outdoors to transmit displacement information of the electronic ink screen. The application server and the outdoor Lora gateway communicate using optical fiber hard wiring to transmit personnel operation information and electronic ink screen displacement information. The application server and the safe production management platform transmit information via the Internet. The application server is connected to the wireless access point in the nuclear island via optical fiber / Ethernet. The wireless access point in the nuclear island is connected to the mobile terminal. The POE_OUT interface on the wireless access point in the nuclear island realizes power supply and network signal transmission for the indoor Bluetooth base station. The Bluetooth base station transmits 2.4G radio frequency signals to communicate with the low-power Bluetooth electronic ink screen.

[0008] The work start and electronic ink screen generation operations are performed on the safety production management platform.

[0009] The information of the operation is transmitted to the Lora gateway and the wireless AP in the nuclear island through the application server.

[0010] The application server transmits the information of the code scanning operation and the position change of the electronic ink screen to the wireless AP5 in the nuclear island via optical fiber / Ethernet.

[0011] The production safety management platform and mobile terminal have a user login function to realize the identity recognition of different users.

[0012] The safety production management platform realizes the rapid generation and update of the display content of the Lora electronic ink screen through system association.

[0013] Two Lora electronic ink screens are generated through the safe production management platform, and the QR codes on the two Lora electronic ink screens correspond one to one.

[0014] One Lora electronic ink screen is used for the load side, and the other Lora electronic ink screen is used for the switch side.

[0015] The Lora electronic ink screen realizes the conversion between "prohibited operation" and "allowed operation".

[0016] The two Lora electronic ink screens are not allowed to be in the "operation allowed" state at the same time.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The present invention provides a nuclear power plant power transmission safety management and control system, which realizes the effectiveness of information transmission during the test power transmission process through various means such as text, sound and light, and verifies the logical mapping relationship between the upstream power switch and the downstream load (pump / motor) through QR code technology to ensure the accuracy of the upstream and downstream correspondence relationship. It also realizes the visualization and traceability of the entire power transmission process through real-time information recording and display in the background, thereby ensuring that the entire test power transmission operation process is accurate and controllable.

[0019] (2) The present invention provides a nuclear power plant power transmission safety management and control system with reasonable design and convenient implementation. It has a strong auxiliary protection function for power-on work such as equipment commissioning and test run, has a high degree of automation, can be switched between signal areas and non-signal areas, and is suitable for various complex working conditions and environments during nuclear power site construction, meeting usage requirements.

[0020] (3) The nuclear power plant power transmission safety management and control system provided by the present invention can realize diversified information transmission in a complex on-site environment, thereby effectively ensuring the safety of on-site pump / motor equipment and test personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a nuclear power plant power transmission safety management and control system provided by the present invention;

[0022] In the picture: 1-Lora electronic ink screen; 2-outdoor Lora gateway; 3-application server; 4-safety production management platform; 5-wireless AP in the nuclear island; 6-mobile terminal; 7-Bluetooth base station; 8-Bluetooth electronic ink screen. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0026] like Figure 1 As shown, the present invention provides a nuclear power plant power transmission safety management and control system, including a Lora electronic ink screen 1, an outdoor Lora gateway 2, an application server 3, a safe production management platform 4, a wireless AP 5 in the nuclear island, a mobile terminal 6, a Bluetooth base station 7, and a Bluetooth electronic ink screen 8.

[0027] The outdoor Lora gateway 2 uses the Lora 4700MHz radio frequency signal to communicate with the Lora electronic ink screen 1 arranged outdoors to transmit the displacement information of the electronic ink screen;

[0028] The application server 3 and the outdoor Lora gateway 2 communicate using optical fiber hard wiring to transmit personnel operation information and electronic ink screen position information;

[0029] Information is transmitted between the application server 3 and the safe production management platform 4 through the Internet. Workers can start work and generate electronic ink screens on the safe production management platform. Such operation information can be transmitted to the Lora gateway 2 and the wireless AP5 in the nuclear island through the application server 3; the wireless AP5 in the nuclear island is connected to the mobile terminal 6; the application server 3 transmits the information of the staff's scanning operation and the displacement of the electronic ink screen to the wireless AP5 in the nuclear island through optical fiber / Ethernet, and uses the POE_OUT interface on the wireless AP5 in the nuclear island to realize power supply and network signal transmission of the indoor Bluetooth base station 7. The Bluetooth base station 7 transmits 2.4G radio frequency signals to communicate with the low-power Bluetooth electronic ink screen 8.

[0030] The production safety management platform 4 and the mobile terminal 6 have a user login function, which can realize the identity recognition of different users and prevent unauthorized personnel from scanning the QR code of the electronic ink screen and causing it to operate erroneously.

[0031] The safety production management platform 4 can quickly generate and update the content displayed on the electronic ink screen through system linkage. At the beginning of work, the staff generates a pair (two) of Lora electronic ink screens 1 through the safety production management platform 4. The QR codes on the two Lora electronic ink screens 1 correspond one-to-one to ensure that the upstream switch and the downstream load are one-to-one. This ensures that the on-site staff will not operate the wrong switch and cause an accidental power-on. One electronic ink screen is used for the load side, and the other electronic ink screen is used for the switch side.

[0032] The safe production management platform 4 and the mobile terminal 6 can record the operation content and operation time of the staff in the system during the entire work process for management personnel to call and view in the background.

[0033] The Lora electronic ink screen 1 can switch between "operation prohibited (white text on a red background)" and "operation allowed (black text on a white background)".

[0034] The system logic requires that the upstream switch and the two Lora electronic ink screens 1 of the downstream load are not allowed to be in the "operation allowed" state at the same time.

[0035] Each Lora e-ink screen 1 appearance needs to be set with a unique barcode so that the staff can find the corresponding Lora e-ink screen 1 code in the software and send commands to it.

[0036] The Lora e-ink screen 1 should be equipped with an LED light to facilitate quick on-site positioning.

[0037] The Lora e-ink screen number 1 is a decimal serial number converted from a binary serial code. 1 is a red background and 0 is a black background, which is convenient for on-site verification.

[0038] The names and nine-digit codes of the equipment on this side and the opposite side are used to facilitate staff to understand the equipment status;

[0039] Graphic QR code: Different jobs generate different QR codes. The QR codes of the No. 1 and No. 2 electronic ink screens of the same job have a unique mapping relationship.

[0040] The information display panel is used to display prompt information such as "operation prohibited" or "operation allowed".

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0042] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A nuclear power plant power transmission safety management and control system, characterized in that: The invention comprises a Lora electronic ink screen (1), an outdoor Lora gateway (2), an application server (3), a safe production management platform (4), a wireless AP (5) in the nuclear island, a mobile terminal (6), a Bluetooth base station (7), and a Bluetooth electronic ink screen (8). The outdoor Lora gateway (2) utilizes Lora The 4700MHz radio frequency signal communicates with the Lora electronic ink screen (1) arranged outdoors to transmit the displacement information of the electronic ink screen; the application server (3) and the outdoor Lora gateway (2) communicate using optical fiber hard wiring to transmit personnel operation information and electronic ink screen displacement information; the application server (3) and the safety production management platform (4) transmit information via the Internet; the application server (3) is connected to the wireless AP (5) in the nuclear island via optical fiber / Ethernet, and the wireless AP (5) in the nuclear island is connected to the mobile terminal (6); the POE_OUT interface on the wireless AP (5) in the nuclear island realizes power supply and network signal transmission to the indoor Bluetooth base station (7), and the Bluetooth base station (7) transmits a 2.4G radio frequency signal to communicate with the low-power Bluetooth electronic ink screen (8); Two Lora electronic ink screens (1) are generated through the safety production management platform (4), and the QR codes on the two Lora electronic ink screens (1) correspond one to one; One Lora electronic ink screen (1) is used for the load side, and the other Lora electronic ink screen (1) is used for the switch side.

2. The nuclear power plant power transmission safety management and control system according to claim 1, characterized in that: The work start and the generation of the electronic ink screen are performed on the safety production management platform (4).

3. The nuclear power plant power transmission safety management and control system according to claim 2, characterized in that: The information of the operation is transmitted to the Lora gateway (2) and the wireless AP (5) in the nuclear island through the application server (3).

4. The nuclear power plant power transmission safety management and control system according to claim 3, characterized in that: The application server (3) transmits the information of the code scanning operation and the position change of the electronic ink screen to the wireless AP5 in the nuclear island via optical fiber / Ethernet.

5. The nuclear power plant power transmission safety management and control system according to claim 1, characterized in that: The production safety management platform (4) and the mobile terminal (6) have a user login function to realize the identity recognition of different users.

6. The nuclear power plant power transmission safety management and control system according to claim 1, characterized in that: The production safety management platform (4) realizes the rapid generation and update of the display content of the Lora electronic ink screen (1) through system association.

7. The nuclear power plant power transmission safety management and control system according to claim 1, characterized in that: The Lora electronic ink screen (1) realizes the conversion between "operation prohibited" and "operation allowed".

8. The nuclear power plant power transmission safety management and control system according to claim 7, characterized in that: The two Lora electronic ink screens (1) are not allowed to be in the "operation allowed" state at the same time.

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