CN103226983B - A kind of radiation field three-dimension monitor system based on fully connected topology and detection method - Google Patents
A kind of radiation field three-dimension monitor system based on fully connected topology and detection method Download PDFInfo
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- CN103226983B CN103226983B CN201310147629.4A CN201310147629A CN103226983B CN 103226983 B CN103226983 B CN 103226983B CN 201310147629 A CN201310147629 A CN 201310147629A CN 103226983 B CN103226983 B CN 103226983B
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Abstract
The present invention openly belongs to technical field of nuclear power energy, particularly a kind of radiation field three-dimension monitor system of nuclear power station wireless mesh network.This monitoring system comprises the probe node, wireless communication networks workstation and the three-dimension monitor platform that set number, and the probe node of described setting number is connected with three-dimension monitor platform successively with wireless communication networks workstation; Described probe node, for gathering and sending detected radiation dose; Described wireless communication networks workstation, for reception and the transmission of data in network; Three-dimension monitor platform, by the data analysis process measured by probe node and display in real time; The present invention reduces wiring in nuclear power station, and safeguard simple, cost significantly reduces; Probe into the regularity of distribution of each regional environment parameter, set up, the numerical simulator of parameter of optimizing the environment, with the optimum mode of " key measurement point adds high precision and derives computation model ", the three-dimensional visualization of the environmental parameter of feasible region and even whole nuclear power station.
Description
Technical field
The invention belongs to technical field of nuclear power energy, particularly a kind of radiation field three-dimension monitor system based on fully connected topology and detection method.
Background technology
Instrument and the monitoring system of current China nuclear power station mainly adopt wired monitoring technology, but under the nuclear power plant environment of closed, intense radiation, corrosion, wired monitoring exists Routing constraints, somewhat expensive, drawback difficult in maintenance; Wired monitoring for critical area in containment needs perforate or fluting, and this will have an impact to electric power radiation field, pressure and other parameters, also still accurately can not estimate the size that this kind of disturbance has an impact at present; In addition, in factory building, radiation field distribution is by calculating based on the measured value of radiation event in containment, current counting accuracy is poor, therefore the measured value that radiation intensity or dosage are provided from multizone multinode is needed, for the optimization of model provides reference value, accurate and anti-interference strong wireless monitoring technology is very important.
Summary of the invention
The instrument and the monitoring system that the present invention is directed to current China nuclear power station mainly adopt wired monitoring technology, there is the deficiency of Routing constraints, somewhat expensive, drawback difficult in maintenance in wired monitoring, proposes a kind of radiation field three-dimension monitor system and method based on fully connected topology.
A radiation field three-dimension monitor system for nuclear power station wireless mesh network, this monitoring system comprises the probe node, wireless communication networks workstation and the three-dimension monitor platform that set number, wherein,
The probe node of described setting number is connected with three-dimension monitor platform successively with wireless communication networks workstation;
Described probe node, is arranged on the specific location in each region of nuclear power plant, for gathering and sending detected radiation dose;
Described wireless communication networks workstation, for reception and the transmission of data in network;
Three-dimension monitor platform, carries out exchanges data by wireless communication networks and detector, by the data analysis process measured by probe node and display in real time;
Described probe node is made up of signal acquisition module, signal processing module, accumulator and radio receiving transmitting module, described signal acquisition module, signal processing module are connected successively with radio receiving transmitting module, and described accumulator is connected with signal processing module radio receiving transmitting module with signal acquisition module respectively;
Described signal acquisition module is connected to form by detector and signal processing circuit unit;
Described signal processing module is connected to form by processor and reservoir;
Described radio receiving transmitting module is connected to form by wireless sensing chip and transceiver;
Described three-dimension monitor platform comprise digitizing spatially module, data acquisition and processing module and three-dimensional display screen composition, described data acquisition and processing module respectively with digitizing spatially module be connected with three-dimensional display screen group;
Described data acquisition and processing module are made up of processing module, database, data acquisition module, and wherein, described processing module, database are connected successively with data acquisition module.
Described probe node adopts the material of anti-high radiation.
The probe node of described setting number adopts the mode of multi-hop and self-organization to form wireless network.
The processing module of described data acquisition and processing module is used for setting alert threshold value, when the data gathered exceed setting threshold value, is sent by warning information three-dimensional display screen group to show early warning.
In the transceiver of the radio receiving transmitting module of described probe node, clock is installed, described clock and local clock automatic synchronization.
The detection method of described system, the method comprises the steps:
Step 1: probe node carries out initialization;
Step 2: probe node sends request and adds network signal, and whether judge to add network successful;
Step 3: if add network failure, then continue to send request to add network signal, if add network success, probe node enters the dormant state of low-power consumption;
Step 4: probe node enters the dormant state of low-power consumption, the specific timing interrupts of wait-receiving mode;
Step 5: after probe node receives specific timing interrupts, probe node exits dormant state, judges whether receive specific timing interrupts is image data trigger pip;
Step 6: if when the specific timing interrupts received is not image data trigger pip, return step 4, if during image data trigger pip, the information acquisition module of probe node carries out initialization;
Step 7: after the information acquisition module of probe node carries out initialization, the information acquisition module of probe node carries out data acquisition, and the data collected, after signal processing module process, are sent to three-dimension monitor platform by radio receiving transmitting module;
Step 8: whether probe node detects data and send successful, and when detecting that data send successfully, probe node enters the dormant state of low-power consumption again, and when detecting that data send unsuccessfully, continuation is sent data by probe node.
Beneficial effect of the present invention is: 1, reduce wiring in nuclear power station, and safeguard simple, cost significantly reduces; 2, under the specific run environment of nuclear power station, set up wireless communication networks workstation, use advanced Detection Techniques, complete the wireless measurement of each regional environment parameter in nuclear power station; 3, the regularity of distribution of each regional environment parameter is probed into, the numerical simulator of foundation, parameter of optimizing the environment, with the optimum mode of " key measurement point adds high precision and derives computation model ", the three-dimensional visualization of the environmental parameter of feasible region and even whole nuclear power station.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of present system;
Fig. 2 is the structural representation of probe node of the present invention composition;
Fig. 3 is MANET feature structure schematic diagram of the present invention;
Fig. 4 is the structural representation of three-dimension monitor platform;
Fig. 5 is the software workflow schematic diagram of detector node.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the present invention will be further described.
As shown in Figure 1, this monitoring system is made up of probe node, wireless communication networks workstation and three-dimension monitor platform.Probe node is arranged on the specific location in each region of nuclear power plant, for gathering and sending detected radiation dose; Probe node is realized by wireless communication networks workstation and carries out mutual between three-dimension monitor platform; Three-dimension monitor platform is to the data analysis process measured by probe node and Real time dynamic display.
The structural representation of probe node composition of the present invention, as shown in Figure 2, probe node is made up of signal acquisition module, signal processing module, accumulator and radio receiving transmitting module, signal acquisition module, signal processing module and radio receiving transmitting module are connected, and accumulator is connected with signal acquisition module, signal processing module radio receiving transmitting module respectively; Signal acquisition module is connected to form by detector and signal processing circuit unit, and signal processing module is connected to form by processor and reservoir, and radio receiving transmitting module is connected to form by wireless sensing chip and transceiver.Probe node used is small-sized probe node, can work in specific nuclear power plant environment, and possesses the feature that measurement dynamic range is wide, the high detection efficiency of energy resolution is high.The radiation information detected first carries out pre-sampling by the signal processing circuit unit of signal acquisition module, baseline restorer, undesired signal shielding, the signal of formulating feature are differentiated and digital signal processing work, ensures that readout equipment can return to the result after the analyzing and processing of operating space and the directviewing description to situation in real time at the scene.Information after process send information to three-dimension monitor platform by radio receiving transmitting module, and radio receiving transmitting module also possesses self-locating function.
In described wireless mesh network, all probe nodes can pass through the mode building network of multi-hop, self-organization.If the information transmission route break of arbitrary probe node or network disconnect, so contiguous a certain detection or routing node can bear the task that data transmit.As shown in Figure 3, when A probe node breaks down, the detection information of B node can select an other paths to transmit automatically.
As shown in Figure 4, three-dimension monitor platform comprises digitizing module, data acquisition and processing module and three-dimensional display screen group spatially.Wherein, the three-dimensional map model having each region of nuclear power station is set up spatially in module; After probe node sends, first calculate high-precision three-dimensional field through processing module by mathematical calculation model, and by the data storing that calculates in database, radiation field information in database shows by 3-D display module timing intuitively in module spatially, and by the size of different colours difference parameter value; The processing module of data acquisition and processing module is used for setting alert threshold value, when the data gathered exceed setting threshold value, is sent by warning information three-dimensional display screen group to show early warning.
As shown in Figure 5, the software workflow of probe node is: step 1: probe node carries out initialization; Step 2: probe node sends request and adds network signal, and whether judge to add network successful; Step 3: if add network failure, then continue to send request to add network signal, if add network success, probe node enters the dormant state of low-power consumption; Step 4: probe node enters the dormant state of low-power consumption, the specific timing interrupts of wait-receiving mode; Step 5: after probe node receives specific timing interrupts, probe node exits dormant state, judges whether receive specific timing interrupts is image data trigger pip; Step 6: if when the specific timing interrupts received is not image data trigger pip, return step 4, if during image data trigger pip, the information acquisition module of probe node carries out initialization; Step 7: after the information acquisition module of probe node carries out initialization, the information acquisition module of probe node carries out data acquisition, and the data collected, after signal processing module process, are sent to three-dimension monitor platform by radio receiving transmitting module; Step 8: whether probe node detects data and send successful, and when detecting that data send successfully, probe node enters the dormant state of low-power consumption again, and when detecting that data send unsuccessfully, continuation is sent data by probe node.
The installation site of probe node requires as follows:
(1) probe node should all be arranged in air or fluid, avoids the contact with wall or pipeline, and the search coverage of detector should not be stopped, to ensure that radiological data is representative;
(2) in the same area, the three dimensional field investigative range obtained by calculated with mathematical model, single probe node is placed in and there is the position of occuring simultaneously with the investigative range of other probe nodes of surrounding, be used for the disappearance of a certain area data avoiding the inefficacy of a certain probe node to cause;
(3) according to different monitoring targets, probe node installation site is as follows:
1. in space environment regions such as radioactive waste factory building, fuel storage factory buildings, probe node intersects equably and is arranged on room wall, to ensure the integrality of search coverage, and keeps larger distance each other; ; Ventilating opening place must be provided with probe node;
2. for the monitoring of liquid or gaseous radioactivity, probe node is evenly installed on pipeline lower wall place with direction of flow, because the radiomaterials such as dust exist deposition with fluid flowing, is radiation dose maximum on the downside of pipeline;
3. in shielding factory building and containment, in designed probe node detector and signal conditioning circuit etc. be partly installed on factory building inside and outside wall respectively, the high radiological dose produced under avoiding accident conditions has an impact to circuit;
(4) for the Radiation monitoring of nuclear power plant's environment, probe node can rely on buildings or fixed pivot to install, and probe node is mainly used in the discontinuous monitoring of environment, carries out the data acquisition of not timing according to monitoring requirements;
(5) under accident conditions, under the accident that particularly probe node may be caused to damage in earthquake etc., can exist in highly radioactive factory building at containment etc. and layout arbitrarily, utilize the MANET characteristic of fully connected topology, in time the radiation information of the scene of the accident is sent to monitoring hall, is used for decreasing the work on the spot amount of operating personnel.
Claims (3)
1. a radiation field three-dimension monitor system for nuclear power station wireless mesh network, is characterized in that, this monitoring system comprises the probe node, wireless communication networks workstation and the three-dimension monitor platform that set number, wherein,
The probe node of described setting number is connected with three-dimension monitor platform successively with wireless communication networks workstation;
Described probe node, is arranged on the specific location in each region of nuclear power plant, for gathering and sending detected radiation dose;
Described wireless communication networks workstation, for reception and the transmission of data in network;
Three-dimension monitor platform, carries out exchanges data by wireless communication networks and detector, by the data analysis process measured by probe node and display in real time;
Described probe node is made up of signal acquisition module, signal processing module, accumulator and radio receiving transmitting module, described signal acquisition module, signal processing module are connected successively with radio receiving transmitting module, and described accumulator is connected with radio receiving transmitting module with signal processing module with signal acquisition module respectively;
Described signal acquisition module is connected to form by detector and signal processing circuit unit;
Described signal processing module is connected to form by processor and reservoir;
Described radio receiving transmitting module is connected to form by wireless sensing chip and transceiver;
Described three-dimension monitor platform comprise digitizing spatially module, data acquisition and processing module and three-dimensional display screen composition, described data acquisition and processing module respectively with digitizing spatially module be connected with three-dimensional display screen group;
Described data acquisition and processing module are made up of processing module, database, data acquisition module, and wherein, described processing module, database are connected successively with data acquisition module.
2. the radiation field three-dimension monitor system of a kind of nuclear power station wireless mesh network according to claim 1, is characterized in that, described probe node adopts the material of anti-high radiation.
3. use the detection method of the system as claimed in claim 1, it is characterized in that, the method comprises the steps:
Step 1: probe node carries out initialization;
Step 2: probe node sends request and adds network signal, and whether judge to add network successful;
Step 3: if add network failure, then continue to send request to add network signal, if add network success, probe node enters the dormant state of low-power consumption;
Step 4: probe node enters the dormant state of low-power consumption, the specific timing interrupts of wait-receiving mode;
Step 5: after probe node receives specific timing interrupts, probe node exits dormant state, judges whether receive specific timing interrupts is image data trigger pip;
Step 6: if when the specific timing interrupts received is not image data trigger pip, return step 4, if during image data trigger pip, the signal acquisition module of probe node carries out initialization;
Step 7: after the signal acquisition module of probe node carries out initialization, the signal acquisition module of probe node carries out data acquisition, and the data collected, after signal processing module process, are sent to three-dimension monitor platform by radio receiving transmitting module;
Step 8: whether probe node detects data and send successful, and when detecting that data send successfully, probe node enters the dormant state of low-power consumption again, and when detecting that data send unsuccessfully, continuation is sent data by probe node.
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| CN104199076B (en) * | 2014-09-12 | 2017-03-15 | 北京东方惠尔图像技术有限公司 | Radiating cuing method and apparatus |
| CN106611072A (en) * | 2015-10-26 | 2017-05-03 | 中广核工程有限公司 | Method and system for simulating radiation dose field of nuclear power station |
| CN106371125B (en) * | 2016-08-17 | 2021-09-17 | 中国核电工程有限公司 | Radiation monitoring method based on PLC |
| CN106443748A (en) * | 2016-08-19 | 2017-02-22 | 黑龙江省科学院技术物理研究所 | High-precision wireless radiation dosage monitoring device and method |
| CN106483545B (en) * | 2016-09-14 | 2021-12-24 | 中国科学院高能物理研究所 | Radioactive source monitoring method and system |
| CN107643536A (en) * | 2017-09-13 | 2018-01-30 | 华南理工大学 | A kind of radiation field visualization system and its method |
| CN109413375A (en) * | 2018-06-13 | 2019-03-01 | 中核第四研究设计工程有限公司 | A kind of intelligent patrol detection and emergency set in radioactivity place |
| CN109143306B (en) * | 2018-07-10 | 2022-08-02 | 上海大学 | Nuclear radiation field imaging device based on tellurium-zinc-cadmium array |
| CN111026163B (en) * | 2019-12-20 | 2021-10-26 | 华南理工大学 | Indoor-oriented uncontrolled radioactive source autonomous searching robot and searching method thereof |
| CN117270015A (en) * | 2023-11-23 | 2023-12-22 | 中国科学技术大学 | Environmental neutron gamma radiation monitoring system and environmental neutron gamma radiation monitoring method |
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