CN111750928A - A cable channel comprehensive monitoring device - Google Patents
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 25
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Abstract
Description
技术领域technical field
本发明涉及电力系统领域,尤其是涉及一种电缆通道综合监测装置。The invention relates to the field of power systems, in particular to a cable channel comprehensive monitoring device.
背景技术Background technique
随着城市电缆的覆盖率逐年提高,电缆在城市电网中的作用也日渐明显。电缆通道是城市供电系统的主动脉,电力排管加工井组合是电缆通道的重要组成部分,也是电缆通道上的薄弱节点,经常发生电力工井井盖丢失、电缆设备被盗、工井内有害气体爆燃等不可控因素而造成安全隐患的情况。As the coverage rate of urban cables increases year by year, the role of cables in urban power grids is becoming more and more obvious. The cable channel is the main artery of the urban power supply system. The combination of the power pipe processing well is an important part of the cable channel, and it is also a weak node on the cable channel. The loss of the power manhole cover, the theft of cable equipment, and the deflagration of harmful gases in the well often occur. Uncontrollable factors and other uncontrollable factors cause safety hazards.
目前,电力系统针对电缆通道还缺乏高可靠性、高集成度的综合在线监测单元。大多检测设备将气体检测部分与温湿度、倾斜角等其他参数检测部分安装在一起,未进行隔离。这种安装方法会降低温湿度、倾斜角等其他参数传感器的失灵、寿命降低等问答题。At present, the power system still lacks a comprehensive online monitoring unit with high reliability and high integration for cable channels. Most of the detection equipment installs the gas detection part together with other parameter detection parts such as temperature and humidity, inclination angle, etc. without isolation. This installation method will reduce the failure of temperature, humidity, tilt angle and other parameters of the sensor, and the reduction of life expectancy.
发明内容SUMMARY OF THE INVENTION
本发明的目的就是为了克服上述现有技术存在的缺陷而提供一种电缆通道综合监测装置。The purpose of the present invention is to provide a comprehensive monitoring device for a cable channel in order to overcome the above-mentioned defects of the prior art.
本发明的目的可以通过以下技术方案来实现:The object of the present invention can be realized through the following technical solutions:
一种电缆通道综合监测装置,包括外壳、吸入式涡轮、气体吸入口、传感单元、采集和通讯单元以及用于提供装置用电的供电单元;所述的外壳内部设有一个挡板,用于将外壳内部划分为第一和第二两个区域;所述的吸入式涡轮在第一区域内与外壳固定连接,用于与安装在外壳侧壁上的气体吸入口配合进行气体采样;所述的采集和通讯单元以及供电单元均位于第二区域内;所述的传感单元与采集和通讯单元相连。A cable channel comprehensive monitoring device includes a casing, a suction turbine, a gas suction port, a sensing unit, a collection and communication unit, and a power supply unit for providing power for the device; The interior of the casing is divided into first and second areas; the suction turbine is fixedly connected to the casing in the first area, and is used for gas sampling in cooperation with the gas suction port installed on the side wall of the casing; so The acquisition and communication unit and the power supply unit are located in the second area; the sensing unit is connected with the acquisition and communication unit.
优选地,所述的传感单元包括CO气体传感器、MEMS温湿度传感器、倾斜角传感器、CH4和H2S综合气体传感器以及O2气体传感器;所述的CO气体传感器、CH4和H2S综合气体传感器以及O2气体传感器均位于第一区域内与挡板固定连接;所述的MEMS温湿度传感器和倾斜角传感器均位于第二区域内与外壳固定连接。Preferably, the sensing unit includes a CO gas sensor, a MEMS temperature and humidity sensor, a tilt angle sensor, a CH 4 and H 2 S integrated gas sensor, and an O 2 gas sensor; the CO gas sensor, CH 4 and H 2 Both the S integrated gas sensor and the O 2 gas sensor are located in the first area and are fixedly connected to the baffle plate; the MEMS temperature and humidity sensor and the tilt angle sensor are both located in the second area and fixedly connected to the housing.
优选地,所述的CO气体传感器、CH4和H2S综合气体传感器或O2气体传感器可替换为SF6气体传感器。Preferably, the CO gas sensor, the CH 4 and H 2 S integrated gas sensor or the O 2 gas sensor can be replaced by an SF 6 gas sensor.
优选地,所述的传感单元与采集和通讯单元采用窄带低功耗无线通讯技术进行通讯,该无线通讯技术包括低功耗蓝牙技术和NB-IOT协议。Preferably, the sensing unit communicates with the acquisition and communication unit using a narrow-band low-power wireless communication technology, and the wireless communication technology includes low-power Bluetooth technology and NB-IOT protocol.
优选地,所述的采集和通讯单元通过窄带低功耗无线通讯技术与监测平台进行通讯。Preferably, the acquisition and communication unit communicates with the monitoring platform through a narrow-band low-power wireless communication technology.
优选地,所述的采集和通讯单元包括SmartNode芯片,该芯片具有边缘计算功能,可对传感单元采集的参数进行筛选和过滤。Preferably, the collection and communication unit includes a SmartNode chip, which has an edge computing function and can screen and filter the parameters collected by the sensing unit.
优选地,所述的供电单元包括电池。Preferably, the power supply unit includes a battery.
优选地,所述的外壳采用高强度、阻燃、防老化工程塑料制成;所述的外壳还设有内置天线。Preferably, the casing is made of high-strength, flame-retardant and anti-aging engineering plastics; the casing is also provided with a built-in antenna.
优选地,所述的监测装置设有可配置参数,该参数包括上报周期、采样周期、传感器报警阈值。Preferably, the monitoring device is provided with configurable parameters, and the parameters include a reporting period, a sampling period, and a sensor alarm threshold.
优选地,所述的监测装置可安装在电缆或电力工井井盖上,用于防止电缆和电力工井井盖的丢失;所述的监测装置安装在电缆上时,装置还设有水位传感器,用于监测电缆通道内水位。Preferably, the monitoring device can be installed on the cable or the electric manhole cover to prevent the loss of the cable and the electric manhole cover; when the monitoring device is installed on the cable, the device is also provided with a water level sensor to use It is used to monitor the water level in the cable channel.
与现有技术相比,本发明具有以下优点:Compared with the prior art, the present invention has the following advantages:
一、通讯安全稳定:本发明采用了窄带低功耗无线通讯技术进行各个单元之间的通讯,并且外壳设有内置天线,使整个单元的无线通讯距离达到2km,保证了通讯的安全稳定。1. Safe and stable communication: The invention adopts the narrow-band low-power wireless communication technology for communication between each unit, and the casing is provided with a built-in antenna, so that the wireless communication distance of the entire unit reaches 2km, ensuring the safety and stability of communication.
二、监控实时性好:本发明中监测装置的上报周期、采样周期、各传感器报警阈值等参数可配置,实现电缆通道内设备状态的准确监控。2. Good real-time monitoring: parameters such as reporting period, sampling period, alarm threshold of each sensor, etc. of the monitoring device in the present invention can be configured, so as to realize accurate monitoring of the equipment status in the cable channel.
三、使用寿命长:本发明采用窄带低功耗无线通讯技术进行各个单元之间通讯,可以实现了电池供电即可使装置寿命达到五年以上,并且本装置使用挡板将气体采样部分与其他部分分隔开,有效地保护了温湿度、倾斜角等其他参数的传感器,延长了装置的使用寿命。3. Long service life: The invention adopts the narrow-band low-power wireless communication technology to communicate between each unit, which can realize the battery power supply to make the device life span more than five years, and the device uses baffles to separate the gas sampling part from other units. Parts are separated to effectively protect the sensors of other parameters such as temperature and humidity, inclination angle, etc., and prolong the service life of the device.
四、应用范围广:本发明中装置的外壳采用高强度、阻燃、防老化工程塑料制成,防护等级达到IP68等级,使得该装置可以适用于多种类型的恶劣环境中。4. Wide range of applications: The shell of the device in the present invention is made of high-strength, flame-retardant and anti-aging engineering plastics, and the protection level reaches IP68 level, so that the device can be suitable for various types of harsh environments.
附图说明Description of drawings
图1为本发明的结构示意图。FIG. 1 is a schematic structural diagram of the present invention.
其中1为吸入式涡轮,2为气体吸入口,3为CO气体传感器,4为电池,5为CH4和H2S综合气体传感器,6为O2气体传感器,7为挡板。1 is a suction turbine, 2 is a gas suction port, 3 is a CO gas sensor, 4 is a battery, 5 is a CH4 and H2S integrated gas sensor, 6 is an O2 gas sensor, and 7 is a baffle.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明的一部分实施例,而不是全部实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例,都应属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
如图1所示,一种电缆通道综合监测装置,包括外壳、吸入式涡轮1、气体吸入口2、传感单元、采集和通讯单元以及用于提供装置用电的供电单元;所述的外壳内部设有一个挡板7,用于将外壳内部划分为第一和第二两个区域,进而将气体监测部分和其他部分分隔开,有效地保护温湿度、倾斜角等传感器,延长装置的使用寿命;所述的吸入式涡轮1在第一区域内与外壳固定连接,用于与安装在外壳侧壁上的气体吸入口1配合进行气体采样;所述的采集和通讯单元以及供电单元均位于第二区域内;所述的传感单元与采集和通讯单元相连。As shown in Figure 1, a cable channel comprehensive monitoring device includes a casing, a suction turbine 1, a gas suction port 2, a sensing unit, a collection and communication unit, and a power supply unit for providing power for the device; the casing There is a
传感单元包括CO气体传感器3、MEMS温湿度传感器、倾斜角传感器、CH4和H2S综合气体传感器5以及O2气体传感器6;所述的CO气体传感器3、CH4和H2S综合气体传感器5以及O2气体传感器6均位于第一区域内与挡板固定连接;所述的MEMS温湿度传感器和倾斜角传感器均位于第二区域内与外壳固定连接。The sensing unit includes a
传感单元与采集和通讯单元采用窄带低功耗无线通讯技术进行通讯,该无线通讯技术包括低功耗蓝牙技术SmartNode和NB-IOT协议。The sensing unit communicates with the acquisition and communication unit using narrow-band low-power wireless communication technology, which includes low-power bluetooth technology SmartNode and NB-IOT protocol.
采集和通讯单元通过窄带低功耗无线通讯技术与监测平台进行通讯。采集和通讯单元包括SmartNode芯片,该芯片具有边缘计算功能。边缘计算功能可对传感单元采集的参数进行筛选和过滤。供电单元包括电池4。外壳采用高强度、阻燃、防老化工程塑料制成,防护等级达到IP68等级。外壳还设有内置天线,可保证整个单元的无线通讯距离达到2km。监测装置设有可配置参数,该参数包括上报周期、采样周期、传感器报警阈值。The acquisition and communication unit communicates with the monitoring platform through narrow-band low-power wireless communication technology. The acquisition and communication unit includes the SmartNode chip, which has edge computing capabilities. The edge computing function can filter and filter the parameters collected by the sensing unit. The power supply unit includes a
电缆通道综合监测装置通过传感单元与采集和通讯单元之间的配合实时采集电缆通道内环境温湿度、气体浓度、电力工井井盖状态等传感参数,通过SmartNode芯片中的边缘计算功能将数据进行过滤和筛选,再通过窄带低功耗无线通讯技术,即低功耗蓝牙技术SmartNode和NB-IOT协议上传到监测平台上。主站监测人员可通过设备发出的预警和报警事故,上报故障信息,配合主站线路拓扑定位故障线缆,及时通知运维人员检修维护,缩短运维查找故障点时间,提高作业效率,提升电缆运维可靠性。The cable channel comprehensive monitoring device collects sensing parameters such as ambient temperature and humidity, gas concentration, and electric manhole cover status in the cable channel in real time through the cooperation between the sensing unit and the acquisition and communication unit. Filter and filter, and then upload to the monitoring platform through the narrow-band low-power wireless communication technology, that is, the low-power Bluetooth technology SmartNode and the NB-IOT protocol. The monitoring personnel of the main station can report the fault information through the early warning and alarm accident issued by the equipment, locate the faulty cable according to the line topology of the main station, promptly notify the operation and maintenance personnel to repair and maintain, shorten the time for the operation and maintenance to find the fault point, improve the operation efficiency, and improve the cable Operational reliability.
本发明中的监测装置可安装在电缆或电力工井井盖上,装置内部的倾斜角传感器可以检测到电缆或电力工井井盖的倾斜角变化情况,可以有效地防止电缆和电力工井井盖的丢失。当监测装置安装在电缆上时,装置还设有水位传感器,用于监测电缆通道内水位。The monitoring device in the present invention can be installed on the cable or the electric manhole cover, the inclination angle sensor inside the device can detect the change of the inclination angle of the cable or the electric manhole cover, and can effectively prevent the loss of the cable and the electric manhole cover . When the monitoring device is installed on the cable, the device is also provided with a water level sensor for monitoring the water level in the cable channel.
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到各种等效的修改或替换,这些修改或替换都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalents within the technical scope disclosed by the present invention. Modifications or substitutions should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
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Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN204086105U (en) * | 2011-09-09 | 2015-01-07 | 塞莫费雪科学(不来梅)有限公司 | A kind of gas sensor system |
CN205080106U (en) * | 2015-09-15 | 2016-03-09 | 南京华帅科技有限公司 | Multi -functional sampling analysis device |
CN105717964A (en) * | 2016-04-19 | 2016-06-29 | 南京含悦电子工程有限公司 | Indoor environment monitoring equipment |
TW201640116A (en) * | 2015-05-08 | 2016-11-16 | 台灣中油股份有限公司 | Portable environmental parameter monitoring device |
CN106768027A (en) * | 2016-12-02 | 2017-05-31 | 国网浙江省电力公司宁波供电公司 | Well Condition Monitoring Device for Cable Channel |
CN206862998U (en) * | 2017-06-27 | 2018-01-09 | 郑州天之润能源科技有限公司 | Portable gas monitoring device |
CN207423933U (en) * | 2017-11-07 | 2018-05-29 | 昆明海立盟电力科技有限公司 | A kind of cable tunnel gas controlling device |
CN109489728A (en) * | 2018-12-14 | 2019-03-19 | 中国电子科技集团公司第四十八研究所 | A kind of sensor |
CN110187666A (en) * | 2018-07-02 | 2019-08-30 | 青岛华高物联网科技有限公司 | A system for monitoring the operation of environmental equipment in underground comprehensive utility corridors |
CN110209090A (en) * | 2019-06-14 | 2019-09-06 | 国网江苏省电力有限公司常州供电分公司 | Intelligent cable well lid |
CN209541793U (en) * | 2018-12-29 | 2019-10-25 | 武汉朗德电气有限公司 | A kind of high-tension cable passway for transmitting electricity composite monitoring device |
CN110609122A (en) * | 2019-09-17 | 2019-12-24 | 国网山东省电力公司烟台市福山区供电公司 | A cable trench gas monitoring equipment |
CN110940895A (en) * | 2019-12-17 | 2020-03-31 | 四川赛康智能科技股份有限公司 | Cable joint explosion-proof fire-extinguishing and temperature, partial discharge comprehensive on-line monitoring device |
-
2020
- 2020-06-16 CN CN202010548737.2A patent/CN111750928A/en active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN204086105U (en) * | 2011-09-09 | 2015-01-07 | 塞莫费雪科学(不来梅)有限公司 | A kind of gas sensor system |
TW201640116A (en) * | 2015-05-08 | 2016-11-16 | 台灣中油股份有限公司 | Portable environmental parameter monitoring device |
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CN206862998U (en) * | 2017-06-27 | 2018-01-09 | 郑州天之润能源科技有限公司 | Portable gas monitoring device |
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CN110187666A (en) * | 2018-07-02 | 2019-08-30 | 青岛华高物联网科技有限公司 | A system for monitoring the operation of environmental equipment in underground comprehensive utility corridors |
CN109489728A (en) * | 2018-12-14 | 2019-03-19 | 中国电子科技集团公司第四十八研究所 | A kind of sensor |
CN209541793U (en) * | 2018-12-29 | 2019-10-25 | 武汉朗德电气有限公司 | A kind of high-tension cable passway for transmitting electricity composite monitoring device |
CN110209090A (en) * | 2019-06-14 | 2019-09-06 | 国网江苏省电力有限公司常州供电分公司 | Intelligent cable well lid |
CN110609122A (en) * | 2019-09-17 | 2019-12-24 | 国网山东省电力公司烟台市福山区供电公司 | A cable trench gas monitoring equipment |
CN110940895A (en) * | 2019-12-17 | 2020-03-31 | 四川赛康智能科技股份有限公司 | Cable joint explosion-proof fire-extinguishing and temperature, partial discharge comprehensive on-line monitoring device |
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