Rod position information synchronous monitoring device based on rod falling test

Abstract

The invention discloses a rod position information synchronous monitoring device based on a rod falling test, and relates to the field of pressurized water reactor nuclear power stations, the device comprises a rod control system, a rod position system and interface equipment; the rod control system is used for acquiring an induction current signal output to the corresponding holding coil by each sub-group rod bundle holding case when a rod falling button is pressed down, determining a rod falling reference signal based on the induction current signal, and synchronously transmitting the rod falling reference signal to the rod position system through interface equipment; the rod position system is used for collecting an induced voltage signal of a primary coil in the rod position detector when a rod falling button is pressed down, obtaining rod position measurement information based on the induced voltage signal, and synchronously transmitting the rod position measurement information to the rod control system through interface equipment; and the rod control system and the rod position system synchronously obtain a rod falling test analysis result according to the rod position measurement information and the rod falling reference signal, so that synchronous monitoring of the rod position information is realized. According to the invention, the efficiency of the rod dropping test can be improved and the labor cost is saved.

Description

Technical Field

[0001] The present application relates to the field of pressurized water reactor nuclear power plants, and in particular to a device for synchronously monitoring rod position information based on a rod drop test. Background Art

[0002] In the operation and maintenance of existing pressurized water reactor nuclear power plants, the rod drop test is an important part of verifying the safety performance of the reactor. This test verifies the emergency shutdown capability of the reactor by simulating the rapid drop of control rods (neutron absorbing rods) in an emergency. The key to the rod drop test is the portability of the operation and the real-time monitoring information. However, there are many problems and challenges in the implementation of the current rod drop test, which seriously restricts the test efficiency and the real-time monitoring results.

[0003] The test operation is cumbersome and inefficient: on the one hand, multiple devices are required to collect waveforms through the measuring holes, and on the other hand, a dedicated module needs to be assembled and then the test is completed by multiple clicks or button presses. The test methods are backward, the customized equipment is costly and inefficient, and it also increases the risk of human error.

[0004] Difficulties in monitoring and analysis: When analyzing the rod drop data, since the starting time waveform and the collected waveform are not in the same coordinate system, the analysis process is complicated, relies on manual judgment, is easily affected by subjective factors, and requires multi-system collaboration, which increases the difficulty and workload of the analysis. With the technological innovation and the digital design of the rod position measurement system, the original rod drop test method cannot fully utilize the digital display equipment.

[0005] The spatial distribution distance is far and the automation and intelligence level is low: the control equipment of the rod control and rod position system of a pressurized water reactor nuclear power plant is usually located in plant buildings on different floors. When conducting a rod drop test, operators in the rod control room and the rod position room are required to use the room telephone to coordinate the test. First, the power supply from the measuring cabinet to the primary coil of the rod position detector is cut off, and then the rod drop button of the power cabinet that controls the corresponding rod bundle is pressed. Finally, the waveform collected by the measuring cabinet is compared with the waveform collected by the holding coil in the power cabinet to obtain the rod drop information. It is impossible to achieve high automation and intelligent control, which affects the accuracy and efficiency of the test. For different pressurized water reactor nuclear power plants, it is impossible to fully achieve high automation, fast and accurate testing when conducting rod drop tests.

[0006] In summary, the existing drop rod test method has problems such as cumbersome operation, low efficiency, and high labor cost. An innovative technical solution is urgently needed to optimize the test process and improve test efficiency and labor cost. Summary of the invention

[0007] The purpose of the present application is to provide a rod position information synchronous monitoring device based on a rod drop test to solve the problems of low efficiency and high labor cost of the rod drop test.

[0008] To achieve the above objectives, this application provides the following solutions:

[0009] The present application provides a rod position information synchronization monitoring device based on a rod drop test, the rod position information synchronization monitoring device is applied to a rod drop test device, the rod drop test device includes a control rod drive mechanism, a rod position detector and a plurality of subgroup rod bundles; the rod position information synchronization monitoring device based on the rod drop test includes: a rod control system, a rod position system and an interface device;

[0010] The rod control system is connected to the control rod drive mechanism. When the rod drop button is pressed, the rod control system collects the induced current signal output from the holding coil of each subgroup rod cluster holding chassis, determines the rod drop reference signal based on the induced current signal of the holding coil of each subgroup rod cluster, and synchronously transmits the rod drop reference signal to the rod position system through the interface device;

[0011] The rod position system is connected to the rod position detector and the interface device respectively. The rod position system is used to collect the induced voltage signal of the primary coil in the rod position detector when the rod drop button is pressed, obtain rod position measurement information based on the induced voltage signal of the primary coil, and synchronously transmit the rod position measurement information to the rod control system through the interface device;

[0012] The rod control system and the rod position system are also used to synchronously obtain the rod drop test analysis result according to the rod position measurement information and the rod drop reference signal, so as to realize synchronous monitoring of the rod position information.

[0013] Optionally, the interface device includes a first interface device and a second interface device;

[0014] The first interface device is connected to the rod position system and the rod control system respectively, and the first interface device is used to synchronously transmit the rod drop reference signal to the rod position system;

[0015] The second interface device is connected to the rod position system and the rod control system respectively, and the second interface device is used to synchronously transmit the rod position measurement information to the rod control system.

[0016] Optionally, the rod control system includes: a power supply cabinet, a conversion and addition operation card, an adapter card and a first analysis device;

[0017] The power supply cabinet is connected to the holding coil of each sub-group rod cluster, and the power supply cabinet is used to collect the induction current signal output from the holding chassis of each sub-group rod cluster to the corresponding holding coil when the rod drop button is pressed;

[0018] The conversion and addition operation card is connected to the power supply cabinet, and is used to process the induced current signal of the holding coil of each subgroup rod cluster to obtain a rod drop reference signal;

[0019] The adapter card is connected to the conversion and addition operation card and the first analysis device respectively, and is used to transmit the rod drop reference signal to the first analysis device;

[0020] The first analysis device is connected to the first interface device, and is used to obtain the rod drop test analysis result according to the rod position measurement information and the rod drop reference signal.

[0021] Optionally, the adapter card and the first analysis device are connected using a DB37 prefabricated cable.

[0022] Optionally, the stick control system further comprises: a logic cabinet;

[0023] The logic cabinet is connected to the power cabinet, and the logic cabinet is used to transmit pulse signals for lifting each subgroup of rod clusters to the power cabinet.

[0024] Optionally, the stick control system further includes: a first network device, a first computer device, a first display device and a first terminal device;

[0025] The first network device is connected to the first analysis device and the first computer device respectively, and the first network device is used to transmit the analysis result of the drop rod test to the first computer device;

[0026] The first computer device is connected to the first terminal device, and the first computer device is used to process and store the analysis result of the drop rod test;

[0027] The first display device is connected to the first computer device, and the first display device is used to display a drop rod test waveform corresponding to a drop rod test analysis result;

[0028] The first terminal device is connected to the first display device, and the first terminal device is used to print the drop rod test waveform.

[0029] Optionally, the rod position system includes a rod position measuring device and a second analyzing device;

[0030] The rod position measurement device is connected to the primary coil of each subgroup of the rod bundle, and is used to collect the induced voltage signal of the primary coil of each subgroup of the rod bundle, and obtain the corresponding rod position measurement information according to the induced voltage signal of the primary coil;

[0031] The second analysis device is connected to the rod position measurement device and the interface device respectively, and is used to automatically collect rod position measurement information, obtain a rod drop test analysis result based on the rod position measurement information and the rod drop reference signal, and automatically output the rod drop test analysis result.

[0032] Optionally, the stick position system further includes: a second network device, a second computer device, a second display device and a second terminal device;

[0033] The second network device is connected to the second analysis device and the second computer device respectively, and the second network device is used to transmit the rod drop test analysis result to the second computer device;

[0034] The second computer device is connected to the second terminal device, and the second computer device is used to process and store the analysis result of the drop rod test;

[0035] The second display device is connected to the second computer device, and the second display device is used to display the rod drop test waveform corresponding to the rod drop test analysis result;

[0036] The second terminal device is connected to the second display device, and the second terminal device is used to print the rod drop test waveform.

[0037] Optionally, the interface device is a junction box.

[0038] Optionally, the first computer device is an industrial computer.

[0039] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0040] The present application provides a rod position information synchronization monitoring device based on a rod drop test, which synchronously transmits a rod drop reference signal calculated by a rod control system to the rod position system through an interface device, and synchronously transmits the rod position measurement information calculated by the rod position system to the rod control system through an interface device, and then synchronously obtains the rod drop test analysis result based on the rod position measurement information and the rod drop reference signal in the rod control system and the rod position system respectively, thereby realizing synchronous monitoring of the rod position information at the locations of the rod control system and the rod position system, eliminating the need to travel back and forth from the rod control room where the rod control system is located to the rod position room where the rod position system is located, thereby improving the efficiency of the rod drop test and saving labor costs. At the same time, there is no need to manually integrate the rod position measurement information and the rod drop reference signal collected by the two systems, thereby further reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1A schematic diagram of functional modules of a device for synchronously monitoring rod position information based on a rod drop test provided in one embodiment of the present application;

[0043] Figure 2 A schematic diagram of the connection relationship of a rod control system provided in an embodiment of the present application;

[0044] Figure 3 A schematic diagram of the connection relationship of the rod position system provided in one embodiment of the present application;

[0045] Figure 4 A schematic diagram of status information displayed by a display device according to an embodiment of the present application;

[0046] Figure 5 A schematic diagram of the working principle of a rod position cabinet during a rod drop test provided by another embodiment of the present application;

[0047] Figure 6 A schematic diagram of the overall process of a drop rod test process provided by another embodiment of the present application;

[0048] Reference numerals:

[0049] Rod control system 4, power supply cabinet 41, conversion and addition operation card 42, adapter card 43, first analysis device 44, logic cabinet 45, first computer device 46, first display device 47, first terminal device 48, online monitoring cabinet 49, rod position system 5, rod position measuring device 51 (including rod position measuring device 511, rod position measuring device 512, rod position measuring device 513, rod position measuring device 514), second analysis device 52 (including second analysis device 521, second analysis device 522, second analysis device 523, second analysis device 524), interface device 6, first interface device 61, second interface device 62, control rod drive mechanism 7, rod position detector 8. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0051] The present application provides a rod position information synchronization monitoring device based on a rod drop test, which can complete multi-system real-time transmission and monitoring of the rod position information of the rod drop test based on the rod drop test reference signal and the rod position measurement information. The devices involved include computer equipment capable of data processing and storage, display equipment for displaying waveforms and data, network equipment for data forwarding and communication of multiple devices, rod position measurement information acquisition and processing equipment (referred to as rod position measurement equipment), analysis equipment for automatically analyzing rod position curves, interface equipment for room signal transmission, terminal equipment for document output and other components.

[0052] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0053] In an exemplary embodiment, Figure 1 As shown, a rod position information synchronization monitoring device based on a rod drop test is provided, and the rod position information synchronization monitoring device is applied to a rod drop test device, and the rod drop test device includes a control rod drive mechanism (CRDM) 4, a rod position detector 8 and a plurality of sub-group rod bundles; the rod position information synchronization monitoring device based on the rod drop test includes: a rod control system 4, a rod position system 5 and an interface device 6.

[0054] like Figure 2 As shown, the rod control system 4 is connected to the control rod drive mechanism 7. The rod control system 4 is used to collect the induced current signal output from the holding chassis of each sub-group rod cluster to the corresponding holding coil when the rod drop button is pressed, determine the rod drop reference signal based on the induced current signal of the holding coil of each sub-group rod cluster, and synchronously transmit the rod drop reference signal to the rod position system 5 through the interface device 6.

[0055] like Figure 3 As shown, the rod position system 5 is connected to the rod position detector 8 and the interface device 6 respectively. The rod position system 5 is used to collect the induced voltage signal of the primary coil in the rod position detector 8 when the rod drop button is pressed, obtain the rod position measurement information based on the induced voltage signal of the primary coil, and synchronously transmit the rod position measurement information to the rod control system 4 through the interface device 6.

[0056] The rod control system 4 and the rod position system 5 are also used to synchronously obtain the rod drop test analysis results according to the rod position measurement information and the rod drop reference signal, so as to realize synchronous monitoring of the rod position information. The rod drop test analysis results include information such as the rod drop test time, acceleration, and speed.

[0057] As an optional implementation, Figure 1 As shown, the interface device 6 includes a first interface device 61 and a second interface device 62, and the interface device 6 is a junction box.

[0058] The first interface device 61 is connected to the rod position system 5 and the rod control system 4 respectively, and the first interface device 61 is used to synchronously transmit the rod drop reference signal to the rod position system 5 .

[0059] The second interface device 62 is connected to the rod position system 5 and the rod control system 4 respectively, and the second interface device 62 is used to synchronously transmit the rod position measurement information to the rod control system 4.

[0060] As an optional implementation, Figure 2 As shown, the rod control system 4 includes: a power supply cabinet 41 , a conversion and addition operation card 42 , an adapter card 43 and a first analysis device 44 .

[0061] The power supply cabinet 41 is connected to the holding coil of each sub-group rod cluster. The power supply cabinet 41 is used to collect the induction current signal output from the holding chassis of each sub-group rod cluster to the corresponding holding coil when the rod drop button is pressed.

[0062] The conversion and addition operation card 42 is connected to the power supply cabinet 41, and is used to process the induction current signal output from each sub-group rod cluster holding chassis to the corresponding holding coil to obtain a rod drop reference signal.

[0063] The adapter card 43 is connected to the conversion and addition operation card 42 and the first analysis device 44 respectively, and is used to transmit the rod drop reference signal to the first analysis device 44. The adapter card 43 and the first analysis device 44 are connected by a DB37 prefabricated cable.

[0064] The first analysis device 44 is connected to the first interface device 61, and the first analysis device 44 is used to obtain the rod drop test analysis result according to the rod position measurement information and the rod drop reference signal.

[0065] As an optional implementation, the rod control system 4 further includes: a logic cabinet 45 .

[0066] like Figure 2 As shown, the logic cabinet 45 is connected to the power cabinet 41 , and the logic cabinet 45 is used to transmit a pulse signal for lifting each subgroup of rod clusters to the power cabinet 41 .

[0067] Specifically, the logic cabinet 45 is connected to the timing control system of the power cabinet 41, and the logic cabinet 45 is used to transmit the pulse signal of each subgroup rod cluster lifting to the timing control system of the power cabinet 41; the timing control system of the power cabinet 41 is connected to the power cabinet rod control chassis in the power cabinet 41, and the timing control system of the power cabinet 41 controls the rod control chassis to output the lifting timing. The timing control system of the power cabinet 41 and the power cabinet rod control chassis are located inside the power cabinet 41, and are both part of the power cabinet 41.

[0068] The power cabinet rod control box is connected to the drive mechanism coil of each sub-group rod cluster, and the power cabinet rod control box is used to supply power to the drive mechanism coil of each sub-group rod cluster. Figure 2 As shown, Figure 2 The connection between the power cabinet rod control chassis and the A1 subgroup drive mechanism coil is shown in the figure.

[0069] As an optional implementation, the stick control system 4 further includes: a first network device, a first computer device 46 , a first display device 47 and a first terminal device 48 .

[0070] The first network device is connected to the first analysis device 44 and the first computer device 46 respectively, and the first network device is used to transmit the analysis result of the drop rod test to the first computer device 46 .

[0071] The first computer device 46 is connected to the first terminal device 48, and the first computer device 46 is used to process and store the analysis result of the drop rod test.

[0072] The first display device 47 is connected to the first computer device 46, and the first display device 47 is used to display the rod drop test waveform corresponding to the rod drop test analysis result.

[0073] The first terminal device 48 is connected to the first display device 47, and the first terminal device 48 is used to print the rod drop test waveform.

[0074] As an optional implementation, Figure 3 As shown, the rod position system 52 includes a rod position measuring device 51 and a second analyzing device 52. There are multiple rod position measuring devices 51, specifically a rod position measuring device 511, a rod position measuring device 512, a rod position measuring device 513 and a rod position measuring device 514; there are multiple second analyzing devices 52, specifically including a second analyzing device 521, a second analyzing device 522, a second analyzing device 523 and a second analyzing device 524.

[0075] like Figure 3As shown, the rod position measurement device 51 is connected to the primary coil of each sub-group rod bundle, and the rod position measurement device 51 is used to collect the induced voltage signal of the primary coil of each sub-group rod bundle, and obtain the corresponding rod position measurement information according to the induced voltage signal of the primary coil. Figure 3 It is shown that the rod position measurement devices 511-214 are respectively connected to the corresponding rod bundle primary coils 1-4 of the sub-group.

[0076] The second analysis device 52 is connected to the rod position measurement device 51 and the interface device 6 respectively. The second analysis device 52 is used to automatically collect rod position measurement information, obtain rod drop test analysis results according to the rod position measurement information and the rod drop reference signal, and automatically output the rod drop test analysis results.

[0077] As an optional implementation, the stick position system 5 also includes: a second network device, a second computer device 23, a second display device 24 and a second terminal device 25.

[0078] The second network device is connected to the second analysis device 52 and the second computer device respectively, and the second network device is used to transmit the analysis result of the drop rod test to the second computer device.

[0079] The second computer device is connected to the second terminal device, and the second computer device is used to process and store the rod drop test analysis result.

[0080] The second display device is connected to the second computer device, and the second display device is used to display the rod drop test waveform corresponding to the rod drop test analysis result.

[0081] The second terminal device is connected to the second display device, and the second terminal device is used to print the rod drop test waveform.

[0082] Specifically, the addition operation, adapter card 43, first analysis device 44, first computer device 46, first display device 47, and first terminal device 48 of the rod control system 4 are all placed in the online monitoring cabinet 49, and the rod position measurement device 51, second analysis device 52, second network device, second computer device, second display device, and second terminal device of the rod position system 5 are all placed in the measurement cabinet. The rod control system 4 is located in the rod control room, and the rod position system 5 is located in the rod position room.

[0083] Rod bundle operation structure diagram reference Figure 1When the rod group is lifted and inserted, the logic cabinet 45 sends corresponding instructions to the power cabinet 41, and the power cabinet 41 feeds back "instruction in progress" to the logic cabinet 45 until it runs to the corresponding position; after receiving the instruction, the power cabinet 41 sends a current signal to its sub-group rod bundle to control the corresponding control rod drive mechanism 7 coil, so that it is lifted and inserted according to the set step frequency, and collects the induction current signal output by the rod bundle holding chassis to the corresponding holding coil and sends it to the online monitoring cabinet 49.

[0084] When conducting a rod drop test, first, the measuring cabinet between rod positions will process the information of each rod bundle of the test rod group collected by the rod position detector 8, and then output it by the second interface device 62 to the first analysis device 44 of the online monitoring cabinet 49 in the rod control room via the first interface device 61. Then, the first interface device 61 will transmit the rod drop test reference signal of the sub-group rod bundle from the online monitoring cabinet 49 via the second interface device 62 to the second analysis device 52 of the measuring cabinet between rod positions. That is, the rod control system 4 and the rod position system 5 synchronously obtain information related to the rod drop test, and finally, the computer equipment and display equipment in each room will display the rod drop test information in real time and output the file, thereby ensuring that the rod drop test information can be synchronously monitored and analyzed in real time in different systems.

[0085] Among them, the computer equipment (including the first computer equipment 46 and the second computer equipment, hereinafter referred to as the computer equipment) and the display equipment (including the first display equipment 47 and the second display equipment, hereinafter referred to as the display equipment) are responsible for the control command issuance and data display. It is necessary to configure a group of them in the rod control room and the rod position room, respectively, as the carriers of the intelligent rod position measurement and monitoring system software, the online monitoring and fault diagnosis system software configuration, and the software operating environment, and can also display various status information and alarm prompts of the rod position, so as to facilitate the operator to monitor and operate the equipment, such as Figure 4 As shown, the status information includes displaying the selected subgroup action waveform (large current / small current signal), the test subgroup holding coil current, the primary coil induction signal and analyzing the speed, acceleration, and falling position of the falling rod; the computer equipment can be an industrial computer with a high-performance processor, large-capacity memory, real-time response, fast data transmission, long-term stable operation, complete input and output equipment, support for commonly used communication protocols (such as Ethernet, serial communication, etc.), and operating system; and Figure 2 and Figure 3 The hardware connection cable between the computer device and the terminal device is a standard USB interface cable, which can respond to requirements quickly; the display device is a monitor with high resolution, high refresh rate, short response time, good color accuracy and color consistency.

[0086] The network device (including the first network device and the second network device, hereinafter referred to as the network device) mainly aggregates the data from different rod position measurement devices 51 and transmits them to the computer device. The network device is a switch with a sufficient number of ports (at least five), compatible with the computer device, and with low-latency data forwarding capabilities (to ensure timely transmission and processing of measurement data). Figure 2 and Figure 3 The network communication adopts high-speed communication network cable.

[0087] The rod position measurement device 51 is responsible for providing the excitation power supply to the primary coil of the rod position detector 8, collecting the induced voltage signal of the measuring coil, and then processing the output Gray code rod position signal through the built-in algorithm. Finally, these monitoring information are summarized through the computer built-in software and intuitively displayed on the display device. The rod position measurement device 51 is generally a rod position measurement chassis, which needs to have low power consumption and ensure good ventilation and heat dissipation. It should contain a digital processing algorithm inside, and the AC circuit can be adjusted by software algorithm compensation. During operation, it directly supplies power to the primary coil and auxiliary coil of the rod position detector 8, collects the primary coil signal of the detector measuring coil, and the encoding module outputs the Gray code rod position signal. In addition, the device has a built-in periodic test signal generator to realize automatic and accurate setting of the measurement threshold, and maintains accurate measurement accuracy under various environmental conditions and reactor power.

[0088] The working principle diagram of the rod position measuring device 51 is as follows Figure 5 The connection relationship is briefly described as follows: Figure 5 The transformer, rod bundle aviation plug connection point, rod drop switch, and red / black rod drop detection hole are all components of the rod position measurement device 51. The transformer is an AC transformer with an output of 6.5VAC AC. The rod bundle aviation plug can be an aviation circular multi-core connector. Figure 5 In the figure, PXFA indicates the aviation plug number, PXFA14 and 1 (14 and 1 indicate the number of the aviation plug core) are the channels through which the rod position measurement chassis supplies power to the primary coil of the rod position detector when the rod position detector is operating normally. It outputs AC 6.5VAC and belongs to the excitation power supply interface of the primary coil of the rod position detector; PXMB (aviation plug number) 17, 18, 28, 29, 30, 31 (17, 18, 28, 29, 30, 31 all indicate the number of the aviation plug core) are the channels for collecting the induced voltage of the primary coil of the rod position detector when doing the drop rod test.

[0089] The stick drop switch is a single-pole double-throw stick drop button, which can be a multi-channel switch, and the on-resistance of each channel is less than 0.1Ω; the red / black stick drop detection hole can be a banana socket or the same type of 2mm measuring hole pure copper insulated terminal. Figure 5 CR1~CR4 are red drop rod detection holes; Figure 5 CB1~CB4 in the figure are all black rod drop detection holes; connection points 1 and 2 are the two ends of the primary coil of the rod position detector 8.

[0090] 1) Cables 1 to 4 are responsible for connecting the single-pole double-throw rod-drop button of the rod position measuring device 51 (actually there are 9 SQ1 to SQ9 in total, and this application only lists 4 of them taking one subgroup as an example) and the primary coil of the rod position detector 8, providing excitation power when the rod bundle is operating normally, collecting the primary coil signal during the rod drop test, and completing the connection between the power supply control signal and the rod drop primary voltage signal. In other words, the setting of cables 1 to 4 is to control the power supply of the rod position measuring device 51 to the primary coil when the rod group is operating normally to calculate the real-time position of the rod bundle; during the rod drop test, it is used to collect the induced voltage value of the primary coil to calculate the rod drop time in combination with the rod drop reference signal.

[0091] a. Connect the connection points C1 and C2 of the rod drop switch SQ1 of the first rod bundle of subgroup 1 to the connection points 1 and 2 of the primary coil of the control rod of the subgroup, and complete the construction of the rod position detector power supply and primary coil induced voltage signal collection channel of the first rod bundle of subgroup 1.

[0092] b. Connect the connection points C1 and C2 of the second rod drop switch SQ2 of subgroup 1 and the connection points 1 and 2 of the primary coil of the subgroup control rod to complete the construction of the power supply of the rod position detector of the second rod of subgroup 1 and the collection channel of the induced voltage signal of the primary coil.

[0093] c. The connection points C1 and C2 of the rod drop switch SQ3 of the third rod bundle of subgroup 1 are connected to the connection points 1 and 2 of the primary coil of the subgroup control rod to complete the construction of the rod position detector power supply and primary coil induced voltage signal collection channel of the third rod bundle of subgroup 1.

[0094] d. The connection points C1 and C2 of the rod drop switch SQ4 of the fourth rod bundle of subgroup 1 are connected to the connection points 1 and 2 of the primary coil of the subgroup control rod, completing the construction of the rod position detector power supply and primary coil induced voltage signal collection channel of the fourth rod bundle of subgroup 1.

[0095] e. Similarly, complete the connection between the rod drop switch connection points C1 and C2 of the first, second, third and fourth beams of rods of subgroup 2 and the corresponding subgroup control rod primary coil connection points 1 and 2, and complete the construction of the rod position detector power supply and primary coil induced voltage signal collection channel of the four beams of rods of subgroup 2.

[0096] 2) Cables 5 to 8 are responsible for collecting the primary coil signals during the rod drop test and sending them to the second computer device for processing after being processed by the second analysis device 52, so as to realize the rod drop test waveform monitoring between rod positions; at the same time, the primary voltage signal of each bundle of rods is sent to the straight-through terminal through the aviation plug.

[0097] 3) Cables 9 to 12 are used to lead the drop rod test information to the panel measurement jack, retaining the original method of using an oscilloscope or other instrument to collect waveforms.

[0098] 4) During the rod bundle lifting and insertion process, the rod position detector operates normally, the rod drop switch channel is NC1→C1, NC2→C2, and the transformer provides excitation power to the primary coil of the rod position detector 8 through the rod bundle aerial plug PXFA; during the rod drop test, the rod drop switch channel is switched to C1→NO1, C2→NO2, and the primary coil induced voltage signal is transmitted to the internal analysis device of the measuring equipment through the rod bundle aerial plug PXMB. At the same time, an oscilloscope or other acquisition device can be used to collect waveforms from the red / black rod drop detection holes.

[0099] Different rod position measurement devices 51 are configured with different IP addresses in the same network segment and are connected to the network device via an Ethernet cable. The network device is connected to the computer device with different IP addresses in the same network segment via an Ethernet cable, so that the computer device can communicate with different chassis in real time, and realize the issuance of control instructions to different chassis and real-time display of data.

[0100] The induced current signal output by the test subgroup rod cluster holding chassis to the corresponding control rod drive mechanism holding coil is added and converted, and then sent to the analysis equipment of the online monitoring cabinet 49 through the adapter card as a rod drop reference signal for rod drop test analysis, and is sent to the measurement cabinet at the same time. Figure 2 and Figure 3 The hardware connection cables for signal transmission between the systems are shielded twisted pair cables and prefabricated cables. The wires sent to the online monitoring cabinet 49 and the rod drop reference signals sent from the adder card to the conversion card use shielded twisted pair cables.

[0101] The analysis equipment (including the first analysis equipment 44 and the second analysis equipment 52, hereinafter referred to as the analysis equipment) is a device for collecting and processing rod position measurement information, automatically analyzing the collected rod position measurement information, and automatically outputting the rod drop test information after the rod group drop test is completed. It is necessary to install one set each in the rod control room and the rod position room. The analysis equipment is used for high-performance data acquisition and control applications, and needs to have a built-in real-time processor and a controller combined with FPGA. The collected data will be further processed and analyzed according to the preset system software. The data can be used to monitor the key parameters such as the position, speed and acceleration of the control rods in the reactor; it also includes precise synchronization and triggering functions, which ensures the temporal consistency of data between different modules, which is crucial for analyzing the dynamic behavior of the reactor; it needs to support multiple protocols so that the measurement data can be efficiently and reliably transmitted to the computer equipment.

[0102] The interface device 6 (the first interface device 61 and the second interface device 62, hereinafter referred to as the interface device 6) is responsible for the switching and transmission of signals. It can send the rod drop reference signal between the rod control room to the rod position room, and can also send the induced voltage signal between the rod position to the rod control room to realize information synchronization monitoring; the document output terminal device (including the first terminal device 48 and the second terminal device, hereinafter referred to as the terminal device) is responsible for converting electronic data into physical form, and can print and retain the real-time rod position waveform to provide intuitive recording and analysis basis. At the same time, it can also print and record relevant test information when the test personnel are not on site for subsequent analysis by the test personnel. Figure 3 As shown, the interface device 6 can be a junction box for connecting the equipment between the rod control room and the rod position room, and any box that matches the signal interface 1 to the signal interface 8 and the straight-through terminal output interface of the rod drop reference signal, and its function is to distribute and transfer signals between different systems. The interface devices 6 of the rod control system 4 and the rod position system 5 both include signal interfaces 1 to 8 (wherein interface signals 1 to 4 are the primary voltage sets of the four control rods of subgroup 1; interface signals 5 to 8 are the primary voltage sets of the four control rods of subgroup 2), and the straight-through terminal output interface of the rod drop reference signal. The interface devices 6 of the two systems can be connected using shielded measurement cables to reduce external signal interference.

[0103] 1. The signal transmission and connection methods of each interface are as follows;

[0104] The rod drop reference signal output interface is composed of two wiring terminals, and its function is to connect the rod drop reference signal in the CRDM online monitoring cabinet with the first interface device 61 of the rod control system 4 through a cable. The first interface device 61 of the rod control system 4 is connected to the second interface device 62 of the rod position system 5 through a shielded measuring cable. The second interface device 62 between rod positions transfers the rod drop reference signal to the rod position measurement cabinet, and the measurement cabinet distributes the rod drop reference signal to the rod drop reference aviation plug interfaces of different rod position measurement chassis, thereby providing a rod drop reference point for data processing and analysis of the rod position measurement chassis.

[0105] The signal interface 1~8 can be a connector of the same type with high reliability (it can be an aviation circular multi-core connector). Its function is to connect the interface signals 1~8 to the second interface device 62 between the rod positions through straight-through terminals by wires, and the second interface device 62 between the rod positions connects the interface signals to the first interface device 61 between the rod control rooms through shielded measuring cables. The main function is to send the induced voltage values ​​of the primary coils of each rod bundle of the corresponding subgroup during the rod drop test to the rod control room through the second interface device 62 of the rod position system 5 and the first interface device 61 of the rod control system 4 pre-set cables.

[0106] 2. Interface signal transmission requirements are as follows:

[0107] a. The transmission channel of the induced voltage value of the primary coil during the rod dropping process firstly adopts a high-reliability connector, which can not only maintain the stability of signal transmission, but also avoid the risk of damage caused by repeated plugging and unplugging; secondly, sending the measurement signal to the interface device 6 through the straight-through terminal output interface can avoid plugging and unplugging the chassis connector during maintenance to affect the normal operation of the rod bundle, which is convenient for replacement and maintenance.

[0108] b. When different systems are connected via the interface device 6, some spare cores can be reserved in the cable to facilitate subsequent system function expansion.

[0109] Beneficial effects of this application:

[0110] 1) The rod position information synchronous monitoring device for the rod drop test of the present application can be directly applied to the nuclear power plant under construction, and realizes the synchronous real-time monitoring and analysis of the rod drop test waveform between the rod control system and the rod position system 5, which is convenient to operate and has a high degree of real-time performance.

[0111] 2) The rod position information synchronous monitoring device for the rod drop test in this application is suitable for the upgraded and modified units of nuclear power plants. Its diverse design ensures that it can fully match the original on-site electrical interface and can be put into the existing system without large-scale modifications. It is easy to implement and promote.

[0112] 3) The computer equipment, display equipment and measurement and analysis equipment required by the rod position information synchronization monitoring device of the rod drop test in this application can ensure efficient processing and analysis of the rod position data during the rod drop test, provide accurate information such as the rod drop time and rod drop speed, and significantly improve the safety and intelligence level of nuclear power plant operation.

[0113] 4) The rod position information synchronous monitoring device of the present application for the rod drop test is easy to operate. The operator only needs to press the rod drop test button between the rod positions to perform the rod drop test in the rod control room. There is no need for technicians to collect data through the measuring holes many times. The staff only needs to monitor all key information on any interface of the rod control or rod position, thereby greatly reducing the time for switching and confirmation between different systems, simplifying the operating process, improving test efficiency, avoiding human errors, and saving labor costs.

[0114] 5) This application adds a document output terminal device to the rod position information synchronous monitoring device of the rod drop test, which can quickly generate reports of processed waveforms and data to avoid secondary copying, providing fast paper feedback for staff. This is especially important when it is necessary to quickly record, analyze or share information with others, further enhancing the practicality and reliability of the system.

[0115] 6) After the rod drop test is completed, it is only necessary to reset the rod drop test button of the rod position measurement box to restore the power supply of the primary coil of the rod position detector 8 and the rod position monitoring function, with fast response and smooth process.

[0116] The working principle of the rod position information synchronous monitoring device based on the rod drop test of the present application is further explained below with another exemplary embodiment.

[0117] Taking the No. 1 unit of a certain nuclear power plant as an example, the nuclear power plant has a total of 33 control rods, which are divided into 9 subgroups. Except for the D group which is a subgroup containing four rod bundles, the other shutdown rod groups Sa, A, B, and C groups each have two subgroups, namely Sa1, Sa2, A1, A2, B1, B2, C1, and C2. Except for the C2 subgroup which has only one rod, the other subgroups each contain four rod bundles. Taking the rod drop test of the four control rods of the A1 subgroup as an example, when conducting the rod drop test, it is necessary to ensure that the rod drop reference signal and the rod position measurement information are synchronously sent to the rod control room and the rod position room. The implementation methods of each part are as follows:

[0118] The conversion and addition operations of the rod control system 4, the adapter card 43, the first analysis device 44, the first computer device 46, the first display device 47, and the first terminal device 48 are all placed in the online monitoring cabinet 49; the rod position measurement device 51, the second analysis device 52, the second network device, the second computer device, the second display device, and the second terminal device of the rod position system 5 are all placed in the measurement cabinet. The computer equipment and display equipment use an industrial computer all-in-one, the rod position measurement device 51 and the second analysis device 52 between rod positions are integrated in an advanced rod position chassis, the first analysis device 44 between rod control rooms uses an NI chassis, and the network equipment uses a switch. The overall implementation method is as follows:

[0119] 1) The wiring and configuration of the industrial control integrated machine of the rod control system 4 and the rod position system 5 are different. The rod control room of the second phase of a certain nuclear power plant needs to synchronously send the rod drop reference signal to the rod position room and receive the rod position measurement signal from the rod position room. The detailed connection relationship is as follows Figure 2 As shown:

[0120] a. First, the logic cabinet 45 transmits the pulse signal of the promotion to the power cabinet 41 via the network cable, and at the same time, the hard wiring between the cabinets is increased to output the promotion command, the logic cabinet 45 fault, the step-out correction and other signals, and receive the operation feedback signal, fault signal and other signals of the power cabinet 41.

[0121] b. Then the rod control box of the power cabinet 41 sends a timing current to the drive coils of the four control rods of the test rod group A1 through hard wiring to ensure that the rod bundles are all lifted to the test position.

[0122] c. After the rod drop button is pressed in the rod control room, the rod control chassis of the power cabinet 41 cuts off the power supply to the coil of the A1 subgroup drive mechanism, and the holding chassis of the four rods of the A1 subgroup are collected through the power cabinet-HF1~power cabinet-HF4 (HF1~HF4 represent Hall elements) in the power cabinet 41 and output to the corresponding holding coils SC1~SC4 (i.e. Figure 2The induced current of A1-SC1~A1-SC4) in the rod control room is converted and processed by the addition operation card as the rod drop reference signal. On the one hand, it is sent to the first analysis device 44, the first computer device 46, and the first display device 47 through the adapter card 43. On the other hand, it is sent to the rod position through the first interface device 61 in the rod control room to realize the synchronization of the rod drop reference signal.

[0123] d. Finally, the rod position measurement information is sent from the rod position room to the first analysis device 44 via the first interface device 61 in the rod control room. In this way, the first analysis device 44 and the first computer device 46 in the rod control room can output the rod drop time, bottoming rebound and other information in combination with the rod drop reference signal to complete the monitoring, analysis and display of the rod drop test information.

[0124] 2) The rod position system 5 needs to receive the rod drop reference signal between the rod control room and synchronously transmit the rod position measurement information to the rod control room. The detailed connection relationship is as follows: Figure 3 shown.

[0125] a. First, the rod bundle needs to be lifted to the test position according to the instructions. At this time, the rod position measurement equipment 511~214 between the rod positions supplies power to the primary coil and auxiliary coil of the rod position detector 8 of the 4-bundle rod of the A1 subgroup, and collects the measurement coil information to output the positions of the four-bundle rods.

[0126] b. When performing the rod drop test, cut off the power supply of the rod position measuring device 511~214 to the rod position detector 8 of the A1 subgroup 4 bundle rods, and follow Figure 5 As shown, the induced voltage of the primary coil of the rod position detector 8 is collected by channels C1→NO1 and C2→NO2.

[0127] c. The rod drop reference signal between rod control is sent to the second analysis device 52 through the second interface device 62 between rod positions. At the same time, the rod position acquisition information of the 4 rods of the A1 subgroup is also sent to the second analysis device 52 after being processed by the rod position measurement devices 511 to 214.

[0128] d. The rod position measurement information is combined with the rod drop reference signal for processing to obtain the rod drop test information. The rod drop test information of the four beams of rods is connected to the second network device interface through a network cable, and then sent from the second network device interface to the second computer device for processing and storage, and then displayed or output as a paper file backup, that is, the rod drop test monitoring, analysis, and display are completed between the rod positions.

[0129] 3) Implementation Methods of Rod Position System 5 Room Interface Device 6

[0130] The second interface device 62 of the rod position system 5 adopts a room interface box.

[0131] a. Implementation method of signal interface 1 to signal interface 8:

[0132] a1. According to the distribution of control rod subgroups, connect the primary voltage signals of control rods of subgroup 1 and subgroup 2 to the direct terminals of the measuring cabinet respectively.

[0133] a2. Connect the positive and negative ends of the primary voltage signals of rod bundle 1 in the SA1, A1, B1, C1, and D subgroups to form interface signal 1, connect the positive and negative ends of the primary voltage signals of rod bundle 2; form interface signal 2, connect the positive and negative ends of the primary voltage signals of rod bundle 3; form interface signal 3, connect the positive and negative ends of the primary voltages of rod bundle 4; form interface signal 4, and connect to the interface device 6 in the room between rod positions; this is mainly to adapt to the transformation of the rod control and rod position system, and complete the transmission of rod position information without increasing channel wiring.

[0134] a3. Connect the positive end of the primary voltage of rod cluster 1 in the SA2, A2, B2, and C2 subgroups, and connect the negative end to form interface signal 5. Connect the positive end of the primary voltage of rod cluster 2, and connect the negative end to form interface signal 6. Connect the positive end of the primary voltage of rod cluster 3, and connect the negative end to form interface signal 7. Connect the positive end of the primary voltage of rod cluster 4, and connect the negative end to form interface signal 8, and connect to the interface device 6 in the room between rod positions.

[0135] a4. Connect the second interface device 62 between the rod positions and the first interface device 61 between the rod controls through a shielded cable.

[0136] a5. Connect the interface signals 1 to 8 in the first interface device 61 of the rod control room to the CRDM online monitoring cabinet adapter card 43 through a shielded cable, which mainly completes the transfer transmission function of the induced voltage signal of the primary coil of the detector.

[0137] b. Implementation Method of the Rod Drop Reference Signal Output Interface

[0138] b1. Connect the rod drop reference signal generated by the CRDM online monitoring cabinet to the first interface device 61 in the rod control room through a shielded cable.

[0139] b2. Connect the rod drop reference signal to the rod position second interface device 62 through the rod control room first interface device 61 via a shielded cable.

[0140] b3. Through the second interface device 62 between the rod positions, the rod drop reference signal is connected to the measurement cabinet, and is transferred to the rod drop reference wiring aviation plug of the rod position chassis through the measurement cabinet through the through-connection terminal.

[0141] 3) The specific implementation process of the whole process of the drop rod test is as follows Figure 6 As shown, the detailed steps and signal processing process are as follows.

[0142] a. Check the hardware equipment and connection status related to the drop rod test:

[0143] a1. Ensure that the interface signals of the wiring box in the rod position room and the wiring box in the rod control room are connected correctly.

[0144] a2. Ensure that the rod drop reference signal interface is correctly connected to the first analysis device 44 between the rod control rooms.

[0145] a3. Ensure that the connection between the rod position collecting information and the second analysis device 52 between the rod positions is good and correct.

[0146] b. Check the configuration and operation status of the drop rod test software:

[0147] b1. Ensure that the rod position software and CRDM online monitoring software operate normally without fault alarm.

[0148] b2. Ensure that the channel collection of the rod position software and CRDM online monitoring software is normal.

[0149] b3. Ensure that the storage space for computer equipment in the stick control room and stick position room is normal.

[0150] c. After the inspection is completed, the test rod group is lifted according to the test requirements. First, the controller of the logic cabinet 45 in the rod control room converts the set 225-step digital signal into a pulse signal, and automatically sends out a pulse signal at a set lifting speed. Then the logic cabinet 45 sends a lifting command electrical signal to the power cabinet 41.

[0151] d. After the timing control system of the power cabinet 41 of the test subgroup A1 receives the lifting command electrical signal, on the one hand, it sends high current / low current timing signals to the 12 rod control chassis respectively, and then controls the three coils of the corresponding driving mechanism of each bundle of rods to be energized according to the predetermined timing, so that the rod bundle moves one step; on the other hand, it will continue to feedback high-level signals to the logic cabinet 45 before lifting to the set value.

[0152] e. After lifting into place, observe whether the logic cabinet 45, measurement cabinet, and main control room rod positions are unified at the top of the pile 225 steps. If not, further out-of-step correction is required.

[0153] f. After reaching the rod drop test position requirement, the AC 6.5V power supply to the primary coil of the rod position detector 8 of the corresponding rod cluster is cut off by the rod drop switch of the test rod cluster.

[0154] g. Then press the rod drop button of the A1 power cabinet 41 in the rod control room. After receiving the high-level input, its timing control system outputs a low-level signal to the holding chassis of the 4 bundles of rods in the cabinet, cutting off the CRDM holding coil current signal, and the 4 bundles of rods in the A1 subgroup start to drop at the same time.

[0155] h.A1 power supply cabinet 41 Hall elements HF1~HF4 output the induced current of the 4-bundle rod holding chassis to the corresponding holding coil, which is then converted and added to the first interface device 61 in the rod control room, and at the same time sent to the first analysis device 44 in the rod control room through the adapter card 43.

[0156] i. The rod position measuring devices 511 to 514 in the rod position measuring cabinet collect the induced voltage of the primary coil of the rod position detector 8 of the A1 subgroup 4 bundle rods, and transmit the rod position measurement information to the second computer device through the network device switch after processing by the second analysis device 52. The second computer device then displays the rod drop curve, outputs the rod drop acceleration and time, etc. on the second display device in combination with the rod drop reference signal sent from the rod control room.

[0157] j. The induced voltage of the primary coil of the four bundles of rods in the A1 subgroup is sent to the first analysis device 44 in the rod control room through the direct-through terminal, and the interface signal 1 to the interface signal 4 are sent to the first analysis device 44 in the rod control room through the room interface box. After being adjusted, the analog signal is converted into a digital signal and sent to the first computer device 46 for processing, and then displayed on the first display device 47 to output the rod drop test information.

[0158] k. After the test is completed, the rod drop switch of the corresponding test rod bundle is restored, thereby restoring the power supply from the rod position measurement chassis to the primary coil of the rod position detector 8, and the monitoring and collection of rod bundle information during normal operation can be restored.

[0159] In summary, when the rod drop test is in progress, the tester can directly cut off the power supply of the primary coil of the test subgroup between the rod positions, and can monitor and output the rod drop test information in the rod control room throughout the process, saving manpower and eliminating the need for multiple measurements through the measuring holes, saving material resources and improving test efficiency.

[0160] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0161] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0162] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but is not limited thereto.

[0163] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0164] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the device, method and its core idea of ​​this application; at the same time, for those skilled in the art, according to the idea of ​​this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A rod position information synchronization monitoring device based on a rod drop test, wherein the rod position information synchronization monitoring device is applied to a rod drop test device, wherein the rod drop test device comprises a control rod drive mechanism, a rod position detector and a plurality of rod subgroups, and is characterized in that: The rod position information synchronous monitoring device based on the rod drop test includes: a rod control system, a rod position system and an interface device; The rod control system is connected to the control rod drive mechanism. When the rod drop button is pressed, the rod control system collects the induced current signal output from the holding coil of each subgroup rod cluster holding chassis, determines the rod drop reference signal based on the induced current signal of the holding coil of each subgroup rod cluster, and synchronously transmits the rod drop reference signal to the rod position system through the interface device; The rod position system is connected to the rod position detector and the interface device respectively. The rod position system is used to collect the induced voltage signal of the primary coil in the rod position detector when the rod drop button is pressed, obtain rod position measurement information based on the induced voltage signal of the primary coil, and synchronously transmit the rod position measurement information to the rod control system through the interface device; The rod control system and the rod position system are also used to synchronously obtain the rod drop test analysis result according to the rod position measurement information and the rod drop reference signal, so as to realize synchronous monitoring of the rod position information.

2. The rod position information synchronous monitoring device based on the rod drop test according to claim 1 is characterized in that: The interface device comprises a first interface device and a second interface device; The first interface device is connected to the rod position system and the rod control system respectively, and the first interface device is used to synchronously transmit the rod drop reference signal to the rod position system; The second interface device is connected to the rod position system and the rod control system respectively, and the second interface device is used to synchronously transmit the rod position measurement information to the rod control system.

3. The rod position information synchronous monitoring device based on the rod drop test according to claim 2 is characterized in that: The rod control system includes: a power supply cabinet, a conversion and addition operation card, an adapter card and a first analysis device; The power supply cabinet is connected to the holding coil of each sub-group rod cluster, and the power supply cabinet is used to collect the induction current signal output from the holding chassis of each sub-group rod cluster to the corresponding holding coil when the rod drop button is pressed; The conversion and addition operation card is connected to the power supply cabinet, and is used to process the induced current signal of the holding coil of each subgroup rod cluster to obtain a rod drop reference signal; The adapter card is connected to the conversion and addition operation card and the first analysis device respectively, and is used to transmit the rod drop reference signal to the first analysis device; The first analysis device is connected to the first interface device, and is used to obtain the rod drop test analysis result according to the rod position measurement information and the rod drop reference signal.

4. The rod position information synchronous monitoring device based on the rod drop test according to claim 3 is characterized in that: The adapter card and the first analysis device are connected by a DB37 prefabricated cable.

5. The rod position information synchronous monitoring device based on the rod drop test according to claim 3 is characterized in that: The stick control system further comprises: a logic cabinet; The logic cabinet is connected to the power cabinet, and the logic cabinet is used to transmit pulse signals for lifting each subgroup of rod clusters to the power cabinet.

6. The rod position information synchronous monitoring device based on the rod drop test according to claim 3 is characterized in that: The stick control system further includes: a first network device, a first computer device, a first display device and a first terminal device; The first network device is connected to the first analysis device and the first computer device respectively, and the first network device is used to transmit the analysis result of the drop rod test to the first computer device; The first computer device is connected to the first terminal device, and the first computer device is used to process and store the analysis result of the drop rod test; The first display device is connected to the first computer device, and the first display device is used to display a drop rod test waveform corresponding to a drop rod test analysis result; The first terminal device is connected to the first display device, and the first terminal device is used to print the drop rod test waveform.

7. The rod position information synchronous monitoring device based on the rod drop test according to claim 1 is characterized in that: The rod position system includes a rod position measuring device and a second analyzing device; The rod position measurement device is connected to the primary coil of each subgroup of the rod bundle, and is used to collect the induced voltage signal of the primary coil of each subgroup of the rod bundle, and obtain the corresponding rod position measurement information according to the induced voltage signal of the primary coil; The second analysis device is connected to the rod position measurement device and the interface device respectively, and is used to automatically collect rod position measurement information, obtain a rod drop test analysis result based on the rod position measurement information and the rod drop reference signal, and automatically output the rod drop test analysis result.

8. The rod position information synchronous monitoring device based on the rod drop test according to claim 7 is characterized in that: The stick position system also includes: a second network device, a second computer device, a second display device and a second terminal device; The second network device is connected to the second analysis device and the second computer device respectively, and the second network device is used to transmit the rod drop test analysis result to the second computer device; The second computer device is connected to the second terminal device, and the second computer device is used to process and store the rod drop test analysis result; The second display device is connected to the second computer device, and the second display device is used to display the rod drop test waveform corresponding to the rod drop test analysis result; The second terminal device is connected to the second display device, and the second terminal device is used to print the rod drop test waveform.

9. The rod position information synchronous monitoring device based on the rod drop test according to claim 1 is characterized in that: The interface device is a junction box.

10. The rod position information synchronous monitoring device based on the rod drop test according to claim 6, characterized in that: The first computer device is an industrial computer.

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