AU2014277701B2 - Signal acquiring and monitoring system based on wireless node network - Google Patents
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Abstract
Abstract: The present invention discloses a signal acquiring and monitoring system based on a 5 wireless node network. The on-site terminal subsystem comprises a plurality of process parameter acquiring devices and a plurality of video acquiring devices, which acquire the data of process parameters and image videos in the wells producing the coal bed gas; the wireless backbone network subsystem comprises a plurality of wireless transceiver node devices and one wireless transceiver root node device, each wireless transceiver 10 node device is connected with the process parameter acquiring devices and video acquiring devices set in the wells producing the coal bed gas, and receives the process parameter data and the video image data acquired by them; and the received process parameter data and the received video image data are transmitted to the wireless transceiver root node device; Wherein, a certain wireless transceiver node device will be 15 wirelessly communicated with the wireless transceiver root node device via its adjacent wireless transceiver node devices, when the wireless communication link between the certain wireless transceiver node device and the wireless transceiver root node device is blocked. IMMULtozoz IMANAIlit I LN PROCESS PARAMETER DATA DATA WIRELESS ON-SITE VIDEO IMAGE DATA BACKBONE VIDEO IMAGE DATA MONITORING TERMINAL NETWORK TERMINAL SUBSYSTEMSU SESBYTM CONTROL SIGNAL SUBSYSTEM CONTROL SIGNAL SUBSYSTEM POWER SUPPLY SUBSYSTEM VIDEO DATA VIDEO IMAGE FIRST FIRST ON-SITE - ACQUIRING -IN COMPRESSIO -jo ENCODING INFORMATION PROCESS OF DEVICE IN MODULE MODULE TRANSMITTING ACQUIRING AND MODULE TRANSMITTING THE COAL BED WRLS GAS PROCESS SECOND SECOND BACKBONE NoPARAMETER Im ENCODING - INFORMATION NETWORK ACQUIRING MODULE TRANSMITTING SUBSYSTEM DEVICES MODULE INFORMATION ON-SITE 'lRECEIVING MODULE ON-SITE TERMINAL SUBSYSTEM POWER SUPPLY SUBSYSTEM
Description
Signal acquiring and monitoring system based on wireless node network Technical field [0001] The present invention relates to the monitoring field of the coal bed gas producing well, in particular to a signal acquiring and monitoring system based on a wireless node network.
Background [0002] Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of common general knowledge in the field.
[0003] The coal bed gas, commonly known as “gas”, exists in the coal bed. The coal bed gas is a hydrocarbon gas, comprising methane as the main ingredient. It is mainly adsorbed on the surface of the coal matrix particles, and is partly dissociated in the coal gaps or dissolved in the water of the coal bed. It is the concomitance mineral resource and belongs to a non-conventional natural gas. The calorific value of 1 m3 pure coal bed gas is equivalent to the calorific value of 1.13 kg gasoline, or the calorific value of 1.21 kg of standard coal. The calorific value of the pure coal bed gas is equivalent to the calorific value of the natural gas. The pure coal bed gas can be mixed with natural gas when being transported or used. In addition, the coal bed gas is quite clean after burned, and there is hardly any exhaust gas left. The pure coal bed gas is a superior fuel for manufacturing industry, chemical industry, power generation and residential lives. However, the coal bed gas is difficult for exploiting, acquiring and transporting, and it requires a high cost to construct and operate.
[0004] The production of the coal bed gas has following different features in comparison with acquiring and transmitting the conventional oil and gas: [0005] For the coal bed gas, more wells have to be dug, the well interval is smaller, the gas pressure is lower, the output is less (less than one tenth of the output of the natural gas wells), and the economic benefit is not high; [0006] The coal bed gas well sites are located at remote mountainous areas. Some areas are not covered by wireless public network signals. It is difficult to communicate.
[0007] Automation level is not high. People apply in situ instruments depending on manually patrolling the wells to read the instruments and manually operating them.
[0008] The well sites are widely distributed (there are a plurality of wells). In addition, the terrain is complex (one peak rises above another peak, and one ravine intersects with another ravine). It is a huge workload for people to patrol well sites manually, and some well sites cannot be reached during the inclement weather; [0009] The research and development of the coal bed gas has gained a huge harvest in the "Eleventh Five-Year", but there are still some problems in the actual production: [0010] The area not covered by any signal becomes a blind region for monitoring, and excessively depends on mobile suppliers; [0011] The cost of video monitoring stays at a high level; [0012] The process parameters cannot be adjusted on time, and it is hard to improve the economic benefit of acquiring and transmitting the coal bed gas.
[0013] The coal bed gas is different from the conventional oil and gas (such as natural gas). The production of the coal bed gas has different features such as lower gas pressure, less output, more wells and that the well sites mainly locate at more remote mountainous areas in comparison with acquiring and transmitting the conventional oil and gas. The development of the coal bed gas industry has been hindered seriously by the low automation level, the low economic benefit, and the low security level of the coal bed gas industry. One of the prime reasons to hinder the development is the problem of the communication network links of the well areas, that is, the problem that the process parameter data / video data of the well sites cannot be uploaded to the central control room; or the control instructions of the central control room cannot be sent to the well sites.
[0014] With the scale development of the coal bed gas, the problems of improving the security and economic benefits of acquiring and transmitting the coal bed gas become more prominent.
Summary of the invention [0015] Embodiments of the present invention provide a signal acquiring and monitoring system based on a wireless node network for overcoming the above problems in the prior art.
[0016] In order to realize the above objects, embodiments of the present invention provide a signal acquiring and monitoring system based on a wireless node network, wherein it comprises: an on-site terminal subsystem, a wireless backbone network subsystem, a monitoring terminal subsystem, a wireless network management subsystem and a power supply subsystem, wherein: [0017] The on-site terminal subsystem comprises a plurality of devices of process parameter acquiring, and a plurality of video acquiring devices, each process parameter acquiring device and each video acquiring device are arranged in a coal bed gas producing well to acquire process parameter data and image video data in the coal bed gas producing well; [0018] The wireless backbone network subsystem comprises a plurality of wireless transceiver node devices and one wireless transceiver root node device, each wireless transceiver node device is arranged at the entrance of one coal bed gas producing well, and is connected with the process parameter acquiring devices and video acquiring devices arranged in said coal bed gas producing well, and receives the process parameter data and the video image data acquired by them; the wireless transceiver node devices are wirelessly communicated with the wireless transceiver root node device, and the received process parameter data and the received video image data are transmitted to the wireless transceiver root node device; Wherein, a certain wireless transceiver node device will be wirelessly communicated with the wireless transceiver root node device via its adjacent wireless transceiver node devices, when the wireless communication link between the certain wireless transceiver node device and the wireless transceiver root node device is blocked.
[0019] The monitoring terminal subsystem is connected with the wireless transceiver root node device, the wireless transceiver root node device transmits the received process parameter data and the received video image data to the monitoring terminal subsystem so as to store and process the data, then the monitoring terminal subsystem transmits a control signal corresponding to the received process parameter data and the received video image data to the wireless transceiver root node device, and then the wireless transceiver root node device transmits the control signal to the corresponding wireless transceiver node device, and then the wireless transceiver node device transmits the control signal to an executing unit connected with the wireless transceiver node device.
[0020] The wireless network management subsystem is connected with the wireless transceiver root node device, for generating, distributing and managing the security keys of all wireless device accessing networks, so as to realize an authorized access, and to obtain a communication link, a communication rate, and a failure alarm signal between each wireless transceiver node device and the wireless transceiver root node device. The communication link communicating between each wireless transceiver node device and the wireless transceiver root node device is planned according to the received wireless communication link, the received communication rate, and the received failure alarm signal; and the planned communication link are transmitted to the wireless transceiver root node device and the corresponding wireless transceiver node device, and each wireless transceiver node device is communicated with the wireless transceiver root node device according to the planned communication link.
[0021] The power supply subsystem respectively supplies power for the on-site terminal subsystem, the wireless backbone network subsystem, the monitoring terminal subsystem and the wireless network management subsystem.
[0022] Alternatively, at every coal bed gas producing well, the on-site terminal subsystem also comprises a video image compression module, a first encoding module, a first information transmitting module, a second encoding module, a second information transmitting module, an information receiving module and an on-site executing device, wherein: [0023] The first encoding module encodes the process parameter data acquired by the process parameter acquiring device, and then transmits it to the corresponding wireless transceiver node device by the first information transmitting module.
[0024] The second encoding module encodes the video image data acquired by the video acquiring device, and then transmits it to the corresponding wireless transceiver node device by the second information transmitting module [0025] The information receiving module is used for receiving the control signal transmitted from the corresponding wireless transceiver node device and transmitting them to the on-site executing device.
[0026] Optionally, the monitoring terminal subsystem comprises an interface module, an information storage module, an information display module and a control module, wherein: [0027] The interface module is connected between the wireless transceiver device and the information storage module. The information display module is connected with the information storage module. The wireless transceiver root node device transmits the received process parameter data and the received video image data to the information storage module via the interface module, and thus transmits them to the information display module; [0028] The control module is connected with the interface module; the control module transmits the control signal to the wireless transceiver root node module via the interface module.
[0029] Optionally, the wireless network management subsystem comprises a wireless device monitoring module and a security management module, wherein: [0030] The security management module is used for generating, distributing and managing security keys of all wireless device access networks, so as to realize the authorized access; [0031] The wireless device monitoring module is used for obtaining a communication link, a communication rate, and a failure alarm signal between each wireless transceiver node device and the wireless transceiver root node device. The communication link communicating between each wireless transceiver node device and the wireless transceiver root node device is planned according to the received wireless communication link, the received communication rate, and the received failure alarm signal, and the planned communication link are transmitted to the wireless transceiver root node device and the corresponding wireless transceiver node device, and each wireless transceiver node device is communicated with the wireless transceiver root node device according to the planned communication link.
[0032] Alternatively, at each wireless transceiver node device, the power supply subsystem comprises a solar cell panel, a solar controller, a storage battery, wherein: [0033] The solar cell panel is connected with the wireless transceiver node devices, the solar controller is connected between the solar cell panel and the storage battery.
[0034] Optionally, the power supply subsystem also comprises a voltage regulation module and a surge protection module, and the voltage regulation module is connected between the solar cell panel and the wireless transceiver node devices. And the surge protection module is connected with the solar cell panel.
[0035] Alternatively, the wireless communication adopts 2.4 / 5.8 GHz IEEE 802.11n standard.
[0036] The above embodiments eventually confirmed that “the backbone network was constructed in compliance with 802.11n technology mainly based on the tree-based and redundancy topology in combination with the static optimum structure and real time dynamic self-healing” as the technical solution of the wireless node network according to the production characteristics and actual demand of the coal bed gas, by means of the careful investigation, survey and analysis to the technical process of the coal bed gas industry, the on-site specific character, the automation situation, and the producing demand, and the all-around comparing wire network, wireless network, and wireless network technology so as to ensure the wireless node network with the specific characters of farther transmission distance, higher real-time, larger coverage area, security and reliable, lower costs of construction, executing and maintenance etc. The wireless node network should have the following technical advantages: [0037] The constraint that cable networks lay cables in remote mountainous area of the coal bed gas to is gotten rid of. Not only the costs of the later construction of its maintenance is reduced, but also the construction period is shorten; [0038] The problem that cable networks are vulnerable to man-made damage or accidental damage could be overcome. The risk that real time monitoring cannot be made on time because of the failure or disrepair of the monitoring network could be reduced.
[0039] The wide bandwidth communication link (greater than 20Mbps), provided by the wireless backbone network, could meet the technology requirement(s) of the collecting and transmitting coal bed gas process and multi-applications remote monitoring to simultaneously monitor the on-site process variables and video image.
[0040] Data or video, image acquiring terminals can communicate directly to the wireless backbone network, and abandon the previous RTU unit, thereby the on site power supply equipments and the implicit fault points are reduced; [0041] The easy expansion way of a "root - branch - leaf" network requires lower expansion cost, and its shorter extended construction period could meet the requirement of the rolling development of the coal bed gas and the requirement of the continuous growth of monitoring demands.
[0042] “The backbone network was constructed in compliance with 802.11 n technology mainly based on the tree-based and redundancy topology in combination with the static optimum structure and real time dynamic self-healing”, therefore the system owns the advantages of both the high transmission rate of the 802.11η systems and the strong robustness characteristics of the MESH network so as to improve data transmission speed and reliability of the backbone network, and to guarantee the effective application of the wireless node network in the field of coal bed gas; [0043] The network applies self-built wireless networks, avoids the malpractice that the GPRS / 3G wireless public networks are excessively relying on the communication operators, achieves the effective coverage of the production area, and clears the monitoring blind spots; [0044] Wireless node networks use the world public frequency band of 2.4 GHz / 5.8 GHz without any application for the band, and plug and play. And on account of self-built wireless network without renting, thus the operational costs of data acquiring and monitoring system can be reduced greatly, and network transmission path, traffic, network delay and so on are actively in control; [0045] The wireless node networks are compatible with a variety of international open standards, and its strong compatibility can protect the in stock investments in construction and reduce construction costs.
[0046] According to an aspect of the present invention there is provided a signal acquiring and monitoring system based on a wireless node network, comprising: an onsite terminal subsystem, a wireless backbone network subsystem, a monitoring terminal subsystem, a wireless network management subsystem and a power supply subsystem, wherein: said on-site terminal subsystem comprises a plurality of process parameter acquiring devices and a plurality of video acquiring devices, each of the plurality of process parameter acquiring devices and each of the plurality of video acquiring devices are arranged in a coal bed gas producing well to acquire process parameter data and image video data in said coal bed gas producing well; said wireless backbone network subsystem mainly based on the tree-based and redundancy topology, comprises a plurality of wireless transceiver node devices and one wireless transceiver root node device, each of the plurality of wireless transceiver node devices is arranged at the entrance of one coal bed gas producing well, and is connected with said process parameter acquiring devices and video acquiring devices arranged in said coal bed gas producing well, and receives said process parameter data and said video image data acquired by them; said wireless transceiver node devices are wirelessly communicated with said wireless transceiver root node device, and said received process parameter data and said received video image data are transmitted to said wireless transceiver root node device; Wherein, a certain wireless transceiver node device will be wirelessly communicated with said wireless transceiver root node device via its adjacent wireless transceiver node devices, when said wireless communication link between the certain wireless transceiver node device and said wireless transceiver root node device is blocked; on the basis of being installed wireless transceiver node devices on the site, the whole situation network routes can be achieved a static optimization in advance; in the process of actual applications, communication links can be re-profiled real-time dynamically; said monitoring terminal subsystem is connected with said wireless transceiver root node device, said wireless transceiver root node device transmits said received process parameter data and said received video image data to said monitoring terminal subsystem so as to store and process said data, then said monitoring terminal subsystem transmits a control signal corresponding to said received process parameter data and said received video image data to said wireless transceiver root node device, and then said wireless transceiver root node device transmits said control signal to said corresponding wireless transceiver node device, and then said wireless transceiver node device transmits said control signal to an executing unit connected with said wireless transceiver node device; said wireless network management subsystem is connected with said wireless transceiver root node device, for generating, distributing and managing said security keys of all wireless device accessing networks, so as to realize an authorized access, and to obtain a communication link, a communication rate, and a failure alarm signal between each of the plurality of wireless transceiver node devices and said wireless transceiver root node device; Said communication link between each of the plurality of wireless transceiver node devices and said wireless transceiver root node device is planned according to said received wireless communication link, said received communication rate, and said received failure alarm signal; and said planned communication link are transmitted to said wireless transceiver root node device and said corresponding wireless transceiver node device, and each of the plurality of wireless transceiver node devices is communicated with said wireless transceiver root node device according to said planned communication link; and said power supply subsystem respectively supplies power for said on-site terminal subsystem, said wireless backbone network subsystem, said monitoring terminal subsystem and said wireless network management subsystem.
[0047] It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative.
[0048] Unless the context clearly requires otherwise, throughout the description and the claims, the words “comprise”, “comprising”, and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of “including, but not limited to”.
Brief description of the drawings [0049] In order to illustrate the technical solutions of the embodiments of the present invention or the implementations of the prior art more clearly, with reference to the accompanying drawings, the description of the embodiments of the present invention or the prior art are given as following briefly. Obviously, the given accompanying drawings are only embodiments of the present invention, therefore, those skilled in the art could get other drawings in accordance with the accompanying drawings without devoting creative work.
[0050] FIG. 1 is a schematic diagram of a signal acquiring and monitoring system based on a wireless node network of an embodiment of the present invention; [0051] FIG. 2 is a schematic diagram of an on-site terminal subsystem of an embodiment of the present invention; [0052] FIG. 3 is a schematic diagram of a monitoring terminal subsystem of an embodiment of the present invention; [0053] FIG. 4a is a schematic diagram of a wireless network management subsystem of an embodiment of the present invention; [0054] FIG. 4b is a schematic diagram of monitoring wireless network states of an embodiment of the present invention; [0055] FIG. 5 is a schematic diagram of the topology structure of a wireless node network of an embodiment of the present invention; [0056] FIG. 6 is a schematic diagram of a power supply subsystem of an embodiment of the present invention;
Detailed description of the embodiments [0057] With reference to the accompanying drawings in the embodiments of the present invention, the description of the technical solutions of implementations of the present invention is given clearly and integrally as following. The given embodiments are only a part of the embodiments of the present invention obviously, but not entire embodiments. Based on the embodiments of the present invention, all of the other embodiments which get without devoting creative work by those skilled in the art should be deemed to be within the scope of the present invention.
[0058] FIG. 1 is a schematic diagram of a signal acquiring and monitoring system based on a wireless node network of an embodiment of the present invention; As shown in FIG. 1, the system comprises: an on-site terminal subsystem, a wireless backbone network subsystem, a monitoring terminal subsystem, a wireless network management subsystem and a power supply subsystem, wherein: [0059] The on-site terminal subsystem comprises a plurality of process parameter acquiring devices and a plurality of video acquiring devices, each process parameter acquiring device and each video acquiring device are arranged in a coal bed gas producing well to acquire process parameter data and image video data in the coal bed gas producing well; [0060] The wireless backbone network subsystem comprises a plurality of wireless transceiver node devices and one wireless transceiver root node device, each wireless transceiver node device is arranged at the entrance of one coal bed gas producing well, and is connected with the process parameter acquiring devices and video acquiring devices arranged in said coal bed gas producing well, and receives the process parameter data and the video image data acquired by them; the wireless transceiver node devices are wirelessly communicated with the wireless transceiver root node device, and the received process parameter data and the received video image data are transmitted to the wireless transceiver root node device. Wherein, a certain wireless transceiver node device will be wirelessly communicated with the wireless transceiver root node device via its adjacent wireless transceiver node devices, when the wireless communication link between the certain wireless transceiver node device and the wireless transceiver root node device is blocked.
[0061] In the wireless backbone network subsystem, the wireless node network is consisted of the wireless transceiver node devices and the wireless transceiver root node device; root - branch - leaf nodes are as the main elements in the wireless node network; the wireless node network is mainly based on the tree-based and redundancy topology in combination with the static optimum structure and real time dynamic selfhealing. Based on the 802.11n technology to build the backbone network, the dynamic self-healing capability of the MESH network is kept; the system can not only have the advantages of high transmission rate of the 802.11η systems, but also have the strong robustness characteristics of the MESH network, its main features are as follows: [0062] The wireless backbone network between well sites / gas acquiring valve groups and booster stations uses point-to-multipoint tree network topology based on 802.11 n so as to guarantee the traffic rate of the backbone network; and to meet the wireless transmit requirements of rapidly data acquiring and monitoring system of the coal bed gas, wide bandwidth, reliable, and middle distance wireless transmission; and to improve the maintainability and future upgrading of the system by taking advantage of the versatility of 802.11n devices. In addition, video equipment only can be connected to the backbone network to transmit the image data via UDP.
[0063] The monitoring terminal subsystem is connected with the wireless transceiver root node device, the wireless transceiver root node device transmits the received process parameter data and the received video image data to the monitoring terminal subsystem so as to store and process the data, then the monitoring terminal subsystem transmits a control signal corresponding to the received process parameter data and the received video image data to the wireless transceiver root node device, and then the wireless transceiver root node device transmits the control signal to the corresponding wireless transceiver node device, and then the wireless transceiver node device transmits the control signal to an executing unit connected with the wireless transceiver node device.
[0064] The wireless network management subsystem is connected with the wireless transceiver root node device, for generating, distributing and managing the security keys of all wireless device accessing networks, so as to realize an authorized access, and to obtain a communication link, a communication rate, and a failure alarm signal between each wireless transceiver node device and the wireless transceiver root node device. The communication link communicating between each wireless transceiver node device and the wireless transceiver root node device is planned according to the received wireless communication link, the received communication rate, and the received failure alarm signal, and the planned communication link are transmitted to the wireless transceiver root node device and the corresponding wireless transceiver node device, and each wireless transceiver node device is communicated with the wireless transceiver root node device according to the planned communication link.
[0065] The power supply subsystem respectively supplies power for the on-site terminal subsystem, the wireless backbone network subsystem, the monitoring terminal subsystem and the wireless network management subsystem.
[0066] FIG. 2 is a schematic diagram of an on-site terminal subsystem of an embodiment of the present invention; As shown in FIG. 2, at every coal bed gas producing well, the on-site terminal subsystem also comprises a process parameter acquiring device, a video image compression module, a first encoding module, a first information transmitting module, a second encoding module, a second information transmitting module, an information receiving module and an on-site executing device, wherein: [0067] The first encoding module encodes the process parameter data acquired by the process parameter acquiring device, and then transmits it to the corresponding wireless transceiver node device by the first information transmitting module.
[0068] The second encoding module encodes the video image data acquired by the video acquiring device, and then transmits it to the corresponding wireless transceiver node device by the second information transmitting module [0069] The information receiving module is used for receiving the control signal transmitted from the corresponding wireless transceiver node device and transmitting them to the on-site executing device.
[0070] Wherein, the process parameter acquiring devices acquire the technical process parameter according to technological requirements, such as temperature, pressure, flow rate, liquid level, poisonous flammable gas density etc. The video image compression module is mainly used in the compress mode of H.264, JPEG or MPEG4, and the encoding modules mainly encode in accordance with the protocols of Modbus, TCP/IP etc. They can be widely used in the acquiring and monitoring of a variety of automatic instruments of the coal bed gas.
[0071] FIG. 3 is a schematic diagram of a monitoring terminal subsystem of an embodiment of the present invention; As shown in FIG. 3, the monitoring terminal subsystem comprises an interface module, an information storage module, an information display module and a control module, wherein: [0072] The interface Module is the interface of the monitoring terminal subsystem and the wireless backbone subsystem, which mainly in charge of receiving process parameter data and video image data, and transmitting the control command information; [0073] The information storage module is mainly used for storing uplink process parameter data/ video image data, which is prepared for a trend report or production logs; [0074] The information display module is mainly used for integrally displaying uplink process parameter data and video image data.
[0075] The operator can dispatch control instructions via the control module according to the conditions on the site.
[0076] The link between monitoring terminal subsystem and wireless backbone can be wired. In addition, in order to improve the reliability, a redundant wired link mode can be used too.
[0077] FIG. 4a is a schematic diagram of a wireless network management subsystem of an embodiment of the present invention; As shown in FIG. 4a, the wireless network management subsystem comprises a wireless device monitoring module and a security management module, wherein: [0078] The security management module is used for generating, distributing and managing security keys of all wireless device access networks, so as to realize the authorized access; [0079] The wireless device monitoring module is used for obtaining a communication link, a communication rate, and a failure alarm signal between each wireless transceiver node device and the wireless transceiver root node device. The communication link communicating between each wireless transceiver node device and the wireless transceiver root node device is planned according to the received wireless communication link, the received communication rate, and the received failure alarm signal, and the planned communication link are transmitted to the wireless transceiver root node device and the corresponding wireless transceiver node device, and each wireless transceiver node device is communicated with the wireless transceiver root node device according to the planned communication link. Wherein, on the basis of being installed wireless transceiver node devices on the site, the whole situation network routes can be achieved a static optimization in advance. The flow equilibrium and the shortest path are taken into account as the constraint conditions when optimizing, in order to reduce block, to balance load, to reduce transmitting hop frequency, and to improve data (especially video image data) transmission efficiency. In the process of actual applications, communication links can be re-profiled real-time dynamically; in order to improve the data transmission speed and reliability of the backbone networks.
[0080] FIG. 4b is a schematic diagram of monitoring wireless network states of an embodiment of the present invention; as shown in FIG. 4b, in status of S1-S4, normal or abnormal can be detected by testing synchronously current link situation of the current node and its father node and wireless signal intensity. The executions corresponding to the state transition in the diagram is as follows: A1: transmitting the communication flow rate and connection status of the nodes; sleep T1 seconds; A2: transmitting the connection status of the nodes; sleep T2 seconds (T1> T2); A3: transmitting the connection status of the nodes; system hot restart; A4: transmitting the connection status of the nodes; sleep T3 seconds (T1> T3); A5: According static network planning, selecting a new parent node, switching the link connection.
[0081] Above conversion for executing is combined with the network static planning, to realize real-time dynamic self-healing for network anomaly errors by switching the link connection.
[0082] FIG. 5 is a schematic diagram of the topology structure of a wireless node network of an embodiment of the present invention; As shown in FIG. 5, the wireless backbone network subsystem is mainly composed by the wireless nodes, each wireless node has an automatic routing function, the wireless nodes can be divided into leaf nodes, branch nodes and root nodes according to their functions, wireless communications are set forth between the leaf nodes, the branch nodes and the root nodes. The root node is the target node of transmitting information of all leaf nodes and branch nodes, which is mainly used for transmitting the data of the backbone network to the monitoring terminal subsystem by means of the cables. As shown in FIG. 5, the leaf nodes are terminal nodes (eg. 3/4/5/6/8/10/11 /12 / n# nodes), which are mainly responsible for acquiring uplink information on branch-level network and transmitting it to the upper nodes. And the leaf nodes are not fixed; they may be turned into corresponding branch nodes when wireless communication links between adjacent leaf node or branch nodes and the upper nodes are blocked. For example, 7# is a leaf node originally, but because the wireless communication link between the leaf node 6# and the root node 2# is blocked by the communication shelter, and they could not communicate each other, leaf node 6# get communicated with the root node 2# via 7# node, thus leaf node 7# is tuned into a branch node.
[0083] The branch node is the intermediate node of the wireless backbone network (e.g. the node 7#, a node 9#), which has relay-operated function in addition to having a leaf node function, the relay-operated function is to transfer information of other leaf nodes to the upper nodes. The wireless communication has the characteristic of the bandwidth attenuation for every hop, therefore a multi-branch structure from the leaf nodes to the root nodes should be avoided, that is, a multihop should be avoided.
[0084] Wireless nodes are connected in the wireless connection mode; and the root nodes and the monitoring subsystem are connected in the wired connection mode, and the leaf nodes and the on-site terminal subsystem are connected in the wired connection mode mainly.
[0085] For the booster stations, the monitoring terminal subsystem and wireless network management subsystem are supplied power in the wired mode; for the modules using low power dissipation in the on-site terminal subsystem, batteries are used for supplying power; for the modules using bigger power dissipation in the wireless backbone network, solar cells are used for supplying power. Since the wired power supply mode and the battery power supply mode are relatively simple, they are no more repeated herein. A solar cell power supply is just described herein.
[0086] FIG. 6 is a schematic diagram of a power supply subsystem of an embodiment of the present invention; As shown in FIG. 6, at each wireless transceiver node device, the power supply subsystem comprises a solar cell panel, solar controller, and storage battery, wherein:
The solar panel is connected with the wireless transceiver node devices, the solar controller is connected between the solar panel and the storage battery. The solar panel is mounted on the mounting bracket, the battery can be set under the ground. It is beautiful and safe.
[0087] The solar panel is the core part of the solar power system, and its value is also highest among the parts of the solar power system. It takes the role of converting solar energy into electric energy, or transmitting it to the storage battery for storage, or pushing the load to work.
[0088] The role of solar controller module is to control the work state of the entire system, and played the role of the battery charge protection and over-discharge protection. In the large temperature different areas, the controller should have qualified to have the temperature compensation function. The role of Battery is to store the light energy from the solar panels up in sunny days, and to release the energy in the battery in the absence of light (such as rainy day, night), for the electrical equipment. The main function of the attachment surge protection modules and power modules is to prevent the equipment to be damaged by lightning strikes in the open air venue and to provide a stable voltage to subsidiary modules.
[0089] The above embodiment eventually confirm that “the backbone network was constructed in compliance with 802.11η technology mainly based on the tree-based and redundancy topology in combination with the static optimum structure and real time dynamic self-healing” as the technical solution of the wireless node network according to the production characteristics and actual demand of the coal bed gas, by means of the careful investigation, survey and analysis to the technical process of the coal bed gas industry, the on-site specific character, the automation situation, and the producing demand, and the all-around comparing wire network, wireless network, and wireless network technology so as to ensure the wireless node network with the specific characters of farther transmission distance, higher real-time, larger coverage area, security and reliable, lower costs of construction, executing and maintenance etc. The wireless node network should have the following technical advantages: [0090] The constraint that cable networks lay cables in remote mountainous area of the coal bed gas to is gotten rid of. Not only the costs of the later construction of its maintenance is reduced, but also the construction period is shorten; [0091] The problem that cable networks are vulnerable to man-made damage or accidental damage could be overcome. The risk that real time monitoring cannot be made on time because of the failure or disrepair of the monitoring network could be reduced.
[0092] The wide bandwidth communication link (greater than 20Mbps), provided by the wireless backbone network, could meet the technology requirement(s) of multiapplications remote monitoring to simultaneously monitor the on-site process variables and video image for acquiring and transmitting Coal bed gas process.
[0093] Data or video, image acquiring terminals can communicate directly to the wireless backbone network, and abandon the previous RTU unit, thereby the on site power supply equipments and the implicit fault points are reduced; [0094] The easy expansion way of a "root - branch - leaf" network requires lower expansion cost, and its shorter extended construction period could meet the requirement of the rolling development of the coal bed gas and the requirement of the continuous growth of monitoring demands. “The backbone network was constructed in compliance with 802.11η technology mainly based on the tree-based and redundancy topology in combination with the static optimum structure and real time dynamic self-healing”, therefore the system own the advantages of both the high transmission rate of the 802.11η systems and the strong robustness characteristics of the MESH network so as to improve data transmission speed and reliability of the backbone network, and to guarantee the effective application of the wireless node network in the field of coal bed gas; [0095] The network applies self-built wireless networks, avoids the malpractice that the GPRS / 3G wireless public networks are excessively relying on the communication operators, achieves the effective coverage of the production area, and clears the monitoring blind spots; [0096] Wireless node networks use the world public frequency band of 2.4 GHz / 5.8 GHz without any application for the band, and plug and play. And on account of self-built wireless network without renting, thus the operational costs of data acquiring and monitoring system can be reduced greatly, and network transmission path, traffic, network delay and so on are actively in control; [0097] The wireless node networks are compatible with a variety of international open standards, and its strong compatibility can protect the in stock investments in construction and reduce and reduce construction costs.
[0098] It will be appreciated by those skilled in the art that: the drawings are a schematic illustration of an embodiment, the modules or processes in the accompanying drawings are not necessarily essential to implement the present invention.
[0099] It will be appreciated by those skilled in the art that the modules of the apparatus in the embodiments not only can be placed in the apparatus according to the description of the present embodiments, but also can be changed correspondingly in one or more devices of the embodiment different from the present embodiments. The modules of the above embodiments not only can be combined into one module, but also may be further split into a plurality of sub-modules.
[00100] Finally, it should be noted that: the above embodiments are merely to illustrate the technical aspects of the present invention, but not intended to limit the technical aspects of the present invention; despite the reference to the aforementioned embodiments of the present invention has been described in detail, those skilled in the art should understand that: it is still possible for the technical solution described in the foregoing embodiment to be modified, or it is still possible for some technical features to be replaced in equivalent; while these modifications or replacements could be made without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A signal acquiring and monitoring system based on a wireless node network, comprising: an on-site terminal subsystem, a wireless backbone network subsystem, a monitoring terminal subsystem, a wireless network management subsystem and a power supply subsystem, wherein: said on-site terminal subsystem comprises a plurality of process parameter acquiring devices and a plurality of video acquiring devices, each of the plurality of process parameter acquiring devices and each of the plurality of video acquiring devices are arranged in a coal bed gas producing well to acquire process parameter data and image video data in said coal bed gas producing well; said wireless backbone network subsystem mainly based on the tree-based and redundancy topology, comprises a plurality of wireless transceiver node devices and one wireless transceiver root node device, each of the plurality of wireless transceiver node devices is arranged at the entrance of one coal bed gas producing well, and is connected with said process parameter acquiring devices and video acquiring devices arranged in said coal bed gas producing well, and receives said process parameter data and said video image data acquired by them; said wireless transceiver node devices are wirelessly communicated with said wireless transceiver root node device, and said received process parameter data and said received video image data are transmitted to said wireless transceiver root node device; Wherein, a certain wireless transceiver node device will be wirelessly communicated with said wireless transceiver root node device via its adjacent wireless transceiver node devices, when said wireless communication link between the certain wireless transceiver node device and said wireless transceiver root node device is blocked; on the basis of being installed wireless transceiver node devices on the site, the whole situation network routes can be achieved a static optimization in advance; in the process of actual applications, communication links can be re-profiled real-time dynamically; said monitoring terminal subsystem is connected with said wireless transceiver root node device, said wireless transceiver root node device transmits said received process parameter data and said received video image data to said monitoring terminal subsystem so as to store and process said data, then said monitoring terminal subsystem transmits a control signal corresponding to said received process parameter data and said received video image data to said wireless transceiver root node device, and then said wireless transceiver root node device transmits said control signal to said corresponding wireless transceiver node device, and then said wireless transceiver node device transmits said control signal to an executing unit connected with said wireless transceiver node device; said wireless network management subsystem is connected with said wireless transceiver root node device, for generating, distributing and managing said security keys of all wireless device accessing networks, so as to realize an authorized access, and to obtain a communication link, a communication rate, and a failure alarm signal between each of the plurality of wireless transceiver node devices and said wireless transceiver root node device; Said communication link between each of the plurality of wireless transceiver node devices and said wireless transceiver root node device is planned according to said received wireless communication link, said received communication rate, and said received failure alarm signal; and said planned communication link are transmitted to said wireless transceiver root node device and said corresponding wireless transceiver node device, and each of the plurality of wireless transceiver node devices is communicated with said wireless transceiver root node device according to said planned communication link; and said power supply subsystem respectively supplies power for said on-site terminal subsystem, said wireless backbone network subsystem, said monitoring terminal subsystem and said wireless network management subsystem.
2. Said system as claimed in claim 1, wherein, at every coal bed gas producing well, said on-site terminal subsystem also comprises a video image compression module, a first encoding module, a first information transmitting module, a second encoding module, a second information transmitting module, an information receiving module and an on-site executing device, wherein: said first encoding module encodes said process parameter data acquired by said process parameter acquiring device, and then transmits it to said corresponding wireless transceiver node device by said first information transmitting module; said second encoding module encodes said video image data acquired by said video acquiring device, and then transmits it to said corresponding wireless transceiver node device by said second information transmitting module; and said information receiving module is used for receiving said control signal transmitted from said corresponding wireless transceiver node device and transmitting said control signal to said on-site executing device.
3. Said system as claimed in claim 1, wherein, said monitoring terminal subsystem comprises an interface module, an information storage module, an information display module and a control module, wherein: said interface module is connected between said wireless transceiver device and said information storage module; Said information display module is connected with said information storage module; Said wireless transceiver root node device transmits said received process parameter data and said received video image data to said information storage module via said interface module, and thus transmits them to said information display module; and said control module is connected with the interface module; the control module transmits said control signal to said wireless transceiver root node module via said interface module.
4. Said system as claimed in claim 1, wherein, said wireless network management subsystem comprises a wireless device monitoring module and a security management module, wherein: said security management module is used for generating, distributing and managing security keys of all wireless device access networks, so as to realize said authorized access; said wireless device monitoring module is used for obtaining said communication link, said communication rate, and said failure alarm signal between each of the plurality of wireless transceiver node devices and said wireless transceiver root node device; said communication link communicating between each of the plurality of wireless transceiver node devices and said wireless transceiver root node device is planned according to said received wireless communication link, said received communication rate, and said received failure alarm signal; and said planned communication links are transmitted to said wireless transceiver root node device and said corresponding wireless transceiver node device, and each of the plurality of wireless transceiver node devices is communicated with said wireless transceiver root node device according to said planned communication link.
5. Said system as claimed in claim 1, wherein, at each wireless transceiver node device, said power supply subsystem comprises a solar cell panel, a solar controller, a storage battery, wherein: said solar cell panel is connected with said wireless transceiver node devices, said solar controller is connected between said solar cell panel and said storage battery.
6. Said system as claimed in claim 5, wherein, said power supply subsystem also comprises a voltage regulation module and a surge protection module, and said voltage regulation module is connected between said solar cell panel and said wireless transceiver node devices; and said surge protection module is connected with said solar cell panel.
7. Said system as claimed in any one of the preceding claims, wherein, said wireless communication adopts 2.4 / 5.8 GHz IEEE 802.11η standard.
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| CN107968903B (en) * | 2017-10-31 | 2019-12-13 | 厦门盈趣科技股份有限公司 | monitoring system and method capable of transmitting emergency information and monitoring equipment |
| CN107911649B (en) * | 2017-10-31 | 2019-10-11 | 厦门盈趣科技股份有限公司 | A kind of monitoring system and method, the monitoring device of emergency information processing |
| CN109413655A (en) * | 2018-10-29 | 2019-03-01 | 广州文冲船厂有限责任公司 | A kind of ship, Radio Network System and its communication means for ship |
| CN109120387B (en) * | 2018-11-07 | 2024-04-19 | 深圳市奥酷曼智能技术有限公司 | Wireless device, platform and control method based on active/standby transmission network |
| CN114143336A (en) * | 2021-06-07 | 2022-03-04 | 辽宁兴标壹网络科技有限公司 | Intelligent device management cloud platform |
| CN116824824B (en) * | 2023-01-28 | 2023-11-21 | 太原杰安易科技有限公司 | Wireless signal acquisition and transmission system based on node controller for coal dressing |
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| JP5552817B2 (en) * | 2010-01-25 | 2014-07-16 | ソニー株式会社 | Power management system, power management device, power management method, power storage device, and electric vehicle |
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| CN103686087B (en) | 2017-06-06 |
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