CN203298800U - Power distribution intelligent monitoring system for broadcast transmitting station - Google Patents
Power distribution intelligent monitoring system for broadcast transmitting station Download PDFInfo
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- CN203298800U CN203298800U CN2013202738675U CN201320273867U CN203298800U CN 203298800 U CN203298800 U CN 203298800U CN 2013202738675 U CN2013202738675 U CN 2013202738675U CN 201320273867 U CN201320273867 U CN 201320273867U CN 203298800 U CN203298800 U CN 203298800U
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Abstract
The utility model provides a power distribution intelligent monitoring system for a broadcast transmitting station, which comprises a power distribution system front-end environment monitoring subsystem, and a terminal monitoring center platform. The power distribution system front-end environment monitoring subsystem is composed of small animal anti-intrusion alarm equipment and a first wireless transmitting module. The small animal anti-intrusion alarm equipment is composed of at least two infrared thermal-induction probes arranged in the front environment of a power distribution system and used for inducting the intrusion of small animals, and a first sampling module used for converting the output induction data of the infrared thermal-induction probes into data of a predetermined format. The first sampling module and the infrared thermal-induction probes are respectively connected with the first wireless transmitting module. The terminal monitoring center platform connected with the power distribution system front-end environment monitoring subsystem is composed of a wireless receiving module used for receiving data transmitted from the first wireless transmitting module. According to the technical scheme of the utility model, the defects of an existing power distribution system in the aspect of safety operation can be made up, and the safety of the entire power distribution system is improved. Therefore, the quality of the safe broadcasting operation is improved.
Description
Technical field
The utility model belongs to monitoring technical field, relates to a kind of monitoring system, particularly relates to a kind of broadcast transmission station power distribution intellectual faculties.
Background technology
The Yangpu transmitting station has been born District of Shanghai part radio midband frequency broadcasting covering task.Along with the Shanghai citizen constantly promote the quality requirements of broadcast program, broadcasting station is uninterrupted, and high-quality broadcast task also seems important all the more.
Distribution system is self-evident for the importance of broadcast transmitting station, and the distribution system routine work that tends to transmitting station of breaking down causes great negative effect, and the routine work of transmitting station is paralysed.In recent years, to cause breaking the example that accident occurs also not within minority because of the fault on distribution system, and General Bureau of Radio, Film and Television has proposed strict demand to each the safety precautions of distribution system especially for this reason.
In addition, the intelligentized system supplymentary transmitting station of application staff carries out routine work has become technological means instantly all the fashion.
The utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of broadcast transmission station power distribution intellectual faculties, is used for making up the deficiency of original distribution system in the safety guarantee operation, the security that improves whole distribution system.
Reach for achieving the above object other relevant purposes, the utility model provides a kind of broadcast transmission station power distribution intellectual faculties.
A kind of broadcast transmission station power distribution intellectual faculties comprises: distribution system front end environment monitoring subsystem, terminal monitoring central platform; Described distribution system front end environment monitoring subsystem comprises anti-toy intrusion alarm equipment and the first wireless sending module; Described anti-toy intrusion alarm equipment comprises at least two infrared hotness detecting heads that are arranged on the toy of induction invasion in the distribution system front end environment, the sensed data of infrared hotness detecting head output is changed into the first sampling module of the data of predetermined format; Described the first sampling module is connected respectively with described the first wireless sending module with described infrared hotness detecting head; Described terminal monitoring central platform is communicated by letter and is connected with described distribution system front end environment monitoring subsystem, comprises that receiving described the first wireless sending module sends the wireless receiving module of data.
Preferably, described distribution system front end environment monitoring subsystem also comprises a cable duct water level detecting equipment and the second wireless sending module, and described cable duct water level detecting equipment comprises: measure the ultrasonic distance measuring module of cable duct water level, the second sampling module; Described the second sampling module is connected respectively with described the second wireless sending module with described ultrasonic distance measuring module, the range data of ultrasonic distance measuring module output is changed into the data of predetermined format and is transferred to the second wireless sending module send.
Preferably, described distribution system front end environment monitoring subsystem also comprises a temperature testing equipment and the 3rd wireless sending module, described temperature testing equipment comprises: the infrared temperature sensor of the temperature of each connection terminal of voltage regulator and transformer and copper bar in the induction distribution system, output temperature data; The 3rd sampling module, be connected respectively with the 3rd wireless sending module with described infrared temperature sensor, temperature data changed into the data of predetermined format and is transferred to the 3rd wireless sending module send.
Preferably, described distribution system front end environment monitoring subsystem also comprises a humiture checkout equipment and the 4th wireless sending module, described humiture checkout equipment comprises: become the Temperature Humidity Sensor of power distribution station ambient temperature and humidity in the induction distribution system, output humiture data; The 4th sampling module, be connected respectively with the 4th wireless sending module with described Temperature Humidity Sensor, the humiture data changed into the data of predetermined format and are transferred to the 4th wireless sending module send.
Preferably, described broadcast transmission station power distribution intellectual faculties also comprises a voltage regulator controller and the 5th wireless sending module, described voltage regulator controller comprises a control module that is connected with voltage regulator in described distribution system, and described control module is for controlling the first embedded processing chip of voltage regulator stable output voltage when fluctuation occurs input voltage; Described the first embedded processing chip is connected with described the 5th wireless sending module.
Preferably, described broadcast transmission station power distribution intellectual faculties also comprises a reactive power self-compensating controlling device and the 6th wireless sending module; Described reactive power self-compensating controlling device is arranged in capacitor compensation cabinet in distribution system, is the second embedded processing chip that a Modulating Power factor reduces reactive power; Described the second embedded processing chip is connected with described the 6th wireless sending module.
Preferably, described the first wireless sending module, the second wireless sending module, the 3rd wireless sending module, the 4th wireless sending module, the 5th wireless sending module and the 6th wireless sending module are the ZIGBEE terminal, described wireless receiving module is the ZIGBEE Centroid, and described ZIGBEE terminal and ZIGBEE Centroid form ZIGBEE star topology net.
Preferably, described ZIGBEE terminal is connected respectively with described anti-toy intrusion alarm equipment, cable duct water level detecting equipment, temperature testing equipment, humiture checkout equipment, voltage regulator controller and reactive power self-compensating controlling device by 485 buses.
As mentioned above, broadcast transmission station power distribution intellectual faculties described in the utility model has following beneficial effect:
The utility model has been realized a kind of broadcast transmission station power distribution intellectual faculties on original power distribution system secure safeguard, be intended to assist the interior staff of platform to monitor better the ruuning situation of whole distribution system, make up the deficiency of original distribution system in the safety guarantee operation, improve the security of whole distribution system, improve the quality of safe broadcast work.
Description of drawings
Fig. 1 is the structural representation of broadcast transmission station power distribution intellectual faculties described in the utility model.
Fig. 2 is the structural representation of anti-toy intrusion alarm equipment described in the utility model.
Fig. 3 is the structural representation of cable duct water level detecting equipment described in the utility model.
Fig. 4 is the structural representation of temperature testing equipment described in the utility model.
Fig. 5 is the structural representation of humiture checkout equipment described in the utility model.
The element numbers explanation
100 distribution system front end environment monitoring subsystems
110 anti-toy intrusion alarm equipments
111 infrared hotness detecting heads
112 first sampling modules
120 first wireless sending modules
130 cable duct water level detecting equipment
131 ultrasonic distance measuring modules
132 second sampling modules
140 second wireless sending modules
150 temperature testing equipments
151 infrared temperature sensors
152 the 3rd sampling modules
160 the 3rd wireless sending modules
170 humiture checkout equipments
171 Temperature Humidity Sensors
172 the 4th sampling modules
180 the 4th wireless sending modules
200 voltage-regulation control subsystem
210 voltage regulator controllers
211 control modules
220 the 5th wireless sending modules
300 reactive power automatic compensation control subsystem
310 reactive power self-compensating controlling devices
320 the 6th wireless sending modules
400 terminal monitoring central platforms
410 wireless receiving modules
Embodiment
Below by particular specific embodiment explanation embodiment of the present utility model, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this instructions.
See also accompanying drawing.Notice, the appended graphic structure that illustrates of this instructions, ratio, size etc., equal contents in order to coordinate instructions to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this instructions as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the utility model.
Embodiment
The present embodiment provides a kind of broadcast transmission station power distribution intellectual faculties, as shown in Figure 1, described broadcast transmission station power distribution intellectual faculties comprises: distribution system front end environment monitoring subsystem 100, voltage-regulation control subsystem 200, reactive power automatic compensation control subsystem 300, terminal monitoring central platform 400.The utility model is based on such design concept of " centralized management; disperse monitoring ", mainly comprise distribution system front end environment monitoring subsystem, voltage-regulation control subsystem, four parts of reactive power automatic compensation control subsystem and terminal monitoring central platform.
Described distribution system front end environment monitoring subsystem 100 comprises: anti-toy intrusion alarm equipment 110 and the first wireless sending module 120, cable duct water level detecting equipment 130 and the second wireless sending module 140, temperature testing equipment 150 and the 3rd wireless sending module 160, humiture checkout equipment 170 and the 4th wireless sending module 180.Distribution system front end environment monitoring subsystem 100 has following several function, anti-toy intrusion detection, and the cable duct water level detecting, each connection terminal of voltage regulator and transformer and copper bar temperature detection, become the monitoring of power distribution station ambient temperature and humidity., in case distribution system front end environment monitoring subsystem detects abnormal conditions, immediately abnormal information is reported to the terminal monitoring central platform.
As shown in Figure 2, described anti-toy intrusion alarm equipment 110 comprises at least two infrared hotness detecting heads 111 that are arranged on the toy of induction invasion in the distribution system front end environment, the sensed data of infrared hotness detecting head output is changed into the first sampling module 112 of the data of predetermined format; Described the first sampling module 112 is connected respectively with described the first wireless sending module 120 with described infrared hotness detecting head 111.When two infrared hotness detecting heads 111 are found the toy invasion simultaneously, just immediately the hotness data are sent to the first sampling module 112, the first sampling module 112 becomes the hotness data preparation data of regulation (or predetermined) form, and is wireless by the first wireless sending module 120(ZIGBEE) send to terminal monitoring central platform 400.Infrared hotness detecting head 111 can be arranged on respectively cable duct and corner, hyperbaric chamber and paste the hidden danger place that many places such as ground etc. easily have toy to enter.Further, described infrared hotness detecting head 111 can be realized 120 degree rotations.
As shown in Figure 3, described cable duct water level detecting equipment 130 comprises: ultrasonic distance measuring module 131, the second sampling modules 132 of measuring the cable duct water level; Described the second sampling module 132 is connected respectively with described the second wireless sending module 150 with described ultrasonic distance measuring module 131, the range data of ultrasonic distance measuring module output is changed into the data of predetermined format and is transferred to the second wireless sending module send to terminal monitoring central platform 400.When terminal monitoring central platform 400 detected described range data over thresholding, the personnel on duty of display alarm announcement opened the ponding in water pump discharge cable duct immediately.
As shown in Figure 4, described temperature testing equipment 150 comprises: infrared temperature sensor 151 and the 3rd sampling module 152; Voltage regulator and each connection terminal of transformer and the temperature of copper bar in infrared temperature sensor 151 induction distribution systems, the output temperature data; The 3rd sampling module 152 is connected respectively with the 3rd wireless sending module 160 with described infrared temperature sensor 151, temperature data is changed into the data of predetermined format and is transferred to the 3rd wireless sending module send to terminal monitoring central platform 400, the real-time detection of realization to voltage regulator and each connection terminal of transformer and copper bar temperature, prevent trouble before it happens.
As shown in Figure 5, described humiture checkout equipment 170 comprises: Temperature Humidity Sensor 171 and the 4th sampling module 172; Become the power distribution station ambient temperature and humidity in Temperature Humidity Sensor 171 induction distribution systems, output humiture data; The 4th sampling module 172 is connected respectively with the 4th wireless sending module 180 with described Temperature Humidity Sensor 171, the humiture data are changed into the data of predetermined format and are transferred to the 4th wireless sending module send to terminal monitoring central platform 400, the Real Time Monitoring of realization to change power distribution station humiture.
Described voltage-regulation control subsystem 200 comprises: voltage regulator controller 210 and the 5th wireless sending module 220.Described voltage regulator controller 210 comprises a control module 211 that is connected with voltage regulator in described distribution system.Further, described control module 211 is for controlling the first embedded processing chip of voltage regulator stable output voltage when fluctuation occurs input voltage; Described the first embedded processing chip is connected with described the 5th wireless sending module 220.The voltage-regulation control subsystem adopts embedded chip to regulate the performance of control module as the core booster tension, control voltage regulator stable output voltage when fluctuation occurs input voltage, and the voltage data of current input and output is in time reported the terminal monitoring central platform.Voltage regulator controller adopts embedded chip as core, can control well voltage regulator stable output voltage when fluctuation occurs input voltage, and the voltage data of current input and output is in time reported the terminal monitoring central platform, and whether the monitoring voltage regulator works simultaneously.
Described reactive power automatic compensation control subsystem 300 comprises: reactive power self-compensating controlling device 310 and the 6th wireless sending module 320.Described reactive power self-compensating controlling device 310 is arranged in capacitor compensation cabinet in distribution system, is the second embedded processing chip that a Modulating Power factor reduces reactive power; Described the second embedded processing chip is connected with described the 6th wireless sending module 320.Reactive power self-compensating controlling device is arranged in capacitor compensation cabinet, and quicker and realization efficiently improves power factor, reaches the purpose of " economize on resources, improve efficiency, protection of the environment, bring benefit to the next generation ".Simultaneously reactive power self-compensating controlling device with the current data real-time report to the terminal monitoring central platform.
Described terminal monitoring central platform 400 is communicated by letter and is connected respectively with described distribution system front end environment monitoring subsystem 100, voltage-regulation control subsystem 200, reactive power automatic compensation control subsystem 300, comprises that receiving described the first wireless sending module 120, the second wireless sending module 140, the 3rd wireless sending module 160, the 4th wireless sending module 180, the 5th wireless sending module 220 and the 6th wireless sending module 320 sends the wireless receiving module 410 of data.Described the first wireless sending module 120, the second wireless sending module 140, the 3rd wireless sending module 160, the 4th wireless sending module 180, the 5th wireless sending module 220 and the 6th wireless sending module 320 are the ZIGBEE terminal, described wireless receiving module is the ZIGBEE Centroid, and described ZIGBEE terminal and ZIGBEE Centroid form ZIGBEE star topology net.Described ZIGBEE terminal is connected respectively with described anti-toy intrusion alarm equipment 110, cable duct water level detecting equipment 130, temperature testing equipment 150, humiture checkout equipment 170, voltage regulator controller 210 and reactive power self-compensating controlling device 310 by 485 buses.Terminal monitoring central platform 400 can preferably adopt embedded-type ARM 11 chip TE6410 as core, implants WINCE operating system, receives the data message from each monitoring subsystem, and is presented on special user interface.This user interface is friendly, and the human-computer interaction ability is stronger.In case situation occurred, personnel on duty can know and take corresponding emergency measure immediately, and intelligent sound power supply emergency plan prompting function is provided simultaneously, the auxiliary process emergent accident of being correlated with.
the utility model is according to staff in platform, especially stay-at-home and electrician's working experience all the year round, but find deficiency and improvements in original distribution system safeguard, " centralized management has been proposed, disperse monitoring " mentality of designing, in conjunction with instantly popular embedded technology, system responses is quick, function diversification, the characteristics such as user interface close friend are developed, realized a kind of broadcast transmission station power distribution intellectual faculties on original power distribution system secure safeguard, be intended to assist the interior staff of platform to monitor better the ruuning situation of whole distribution system, make up the deficiency of original distribution system in the safety guarantee operation, improve the security of whole distribution system, improve the quality of safe broadcast work.
in the utility model, whether the many groups infrared sensor that is arranged on the ground such as cable duct and corner, hyperbaric chamber can in time capture the invasion of toy and send the data to acquisition module, realize in cable duct and in hyperbaric chamber having the detection of toy invasion and data to show, ultrasonic distance measuring module sends to range data the terminal monitoring central platform to have one to understand timely for personnel on duty to the water potential of cable duct in real time, need to keep long efficient operation, especially at typhoon, under the inclement weathers such as heavy rain, can realize that the detection of cable duct internal water accumulation situation and data show, the set point temperature collection is carried out temperature monitoring by contactless (infrared measurement of temperature) mode to special object, such as: the transformer in hyperbaric chamber or copper busbar etc., because of these equipment in running order for a long time, so need to carry out incessantly temperature acquisition,, when temperature occurs can in time find and process while sharply changing, can realize that the temperature detection of voltage regulator and transformer connecting terminal and copper bar and data show, pop one's head in the ambient temperature and humidity that detect to become power distribution station and real-time Transmission to the terminal monitoring platform by humiture, helps personnel on duty can in time understand the environmental parameter that becomes power distribution station, can realize becoming the detection data demonstration of power distribution station ambient temperature and humidity, adopting embedded chip at a high speed is core design, in order to can implement to control to voltage regulator well, need in time to control voltage regulator and carry out pressure regulation (step-up/down) when voltage regulator controller detects input voltage and nominal value and differs over setting value, make output voltage stabilization in the scope of setting value, can realize improving the performance of voltage regulator, show the voltage data of current voltage regulator, whether the monitoring voltage regulator is working properly, it is that core designs that automatic reactive power compensation cabinet adopts embedded chip, electric power system is carried out detecting in real time also control capacitance compensating cabinet reactive power is compensated, and can realize the control of reactive power automatic compensation, the automatic power adjustment factor, the terminal monitoring center adopts the ARM11 chip as core, mix the touch-screen of 10.4 inches, abundant interface such as USB are arranged, RS232, RJ45 etc. can meet the data communication module of diversification, embed WINCE operating system, terminal software for display of exploitation in WINCE operating system, this software requirement user interface is friendly, the human-computer interaction ability is strong, can carry out real-time demonstration and according to the design thresholding of each data, personnel on duty be pointed out when the data abnormal data, power supply emergency plan automatic alarm is arranged simultaneously, can assist personnel on duty to carry out emergency measure.
In this ZIGBEE communication network, each ZIGBEE terminal can in time, inerrably send the data to the ZIGBEE Centroid, so that terminal monitoring central platform 400 can carry out to whole distribution system monitoring, the management of a real-time high-efficiency.
In sum, the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of completing under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (8)
1. a broadcast transmission station power distribution intellectual faculties, is characterized in that, described broadcast transmission station power distribution intellectual faculties comprises:
Distribution system front end environment monitoring subsystem, comprise anti-toy intrusion alarm equipment and the first wireless sending module; Described anti-toy intrusion alarm equipment comprises at least two infrared hotness detecting heads that are arranged on the toy of induction invasion in the distribution system front end environment, the sensed data of infrared hotness detecting head output is changed into the first sampling module of the data of predetermined format; Described the first sampling module is connected respectively with described the first wireless sending module with described infrared hotness detecting head;
The terminal monitoring central platform, communicate by letter and be connected with described distribution system front end environment monitoring subsystem, comprises that receiving described the first wireless sending module sends the wireless receiving module of data.
2. broadcast transmission station power distribution intellectual faculties according to claim 1, it is characterized in that, described distribution system front end environment monitoring subsystem also comprises a cable duct water level detecting equipment and the second wireless sending module, and described cable duct water level detecting equipment comprises:
Measure the ultrasonic distance measuring module of cable duct water level;
The second sampling module, be connected respectively with described the second wireless sending module with described ultrasonic distance measuring module, the range data of ultrasonic distance measuring module output changed into the data of predetermined format and is transferred to the second wireless sending module send.
3. broadcast transmission station power distribution intellectual faculties according to claim 1, is characterized in that, described distribution system front end environment monitoring subsystem also comprises a temperature testing equipment and the 3rd wireless sending module, and described temperature testing equipment comprises:
The infrared temperature sensor of the temperature of each connection terminal of voltage regulator and transformer and copper bar in the induction distribution system, the output temperature data;
The 3rd sampling module, be connected respectively with the 3rd wireless sending module with described infrared temperature sensor, temperature data changed into the data of predetermined format and is transferred to the 3rd wireless sending module send.
4. broadcast transmission station power distribution intellectual faculties according to claim 1, is characterized in that, described distribution system front end environment monitoring subsystem also comprises a humiture checkout equipment and the 4th wireless sending module, and described humiture checkout equipment comprises:
Become the Temperature Humidity Sensor of power distribution station ambient temperature and humidity in the induction distribution system, output humiture data;
The 4th sampling module, be connected respectively with the 4th wireless sending module with described Temperature Humidity Sensor, the humiture data changed into the data of predetermined format and are transferred to the 4th wireless sending module send.
5. broadcast transmission station power distribution intellectual faculties according to claim 1, it is characterized in that: described broadcast transmission station power distribution intellectual faculties also comprises a voltage-regulation control subsystem, described voltage-regulation control subsystem comprises voltage regulator controller and the 5th wireless sending module, described voltage regulator controller comprises a control module that is connected with voltage regulator in described distribution system, and described control module is for controlling the first embedded processing chip of voltage regulator stable output voltage when fluctuation occurs input voltage; Described the first embedded processing chip is connected with described the 5th wireless sending module.
6. broadcast transmission station power distribution intellectual faculties according to claim 1, it is characterized in that: described broadcast transmission station power distribution intellectual faculties also comprises a reactive power automatic compensation control subsystem, and described reactive power automatic compensation control subsystem comprises reactive power self-compensating controlling device and the 6th wireless sending module; Described reactive power self-compensating controlling device is arranged in capacitor compensation cabinet in distribution system, is the second embedded processing chip that a Modulating Power factor reduces reactive power; Described the second embedded processing chip is connected with described the 6th wireless sending module.
7. the described broadcast transmission station power distribution of according to claim 1 to 6 any one intellectual faculties, it is characterized in that: described the first wireless sending module, the second wireless sending module, the 3rd wireless sending module, the 4th wireless sending module, the 5th wireless sending module and the 6th wireless sending module are the ZIGBEE terminal, described wireless receiving module is the ZIGBEE Centroid, and described ZIGBEE terminal and ZIGBEE Centroid form ZIGBEE star topology net.
8. broadcast transmission station power distribution intellectual faculties according to claim 7 is characterized in that: described ZIGBEE terminal is connected respectively with described anti-toy intrusion alarm equipment, cable duct water level detecting equipment, temperature testing equipment, humiture checkout equipment, voltage regulator controller and reactive power self-compensating controlling device by 485 buses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202738675U CN203298800U (en) | 2013-05-17 | 2013-05-17 | Power distribution intelligent monitoring system for broadcast transmitting station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202738675U CN203298800U (en) | 2013-05-17 | 2013-05-17 | Power distribution intelligent monitoring system for broadcast transmitting station |
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| CN203298800U true CN203298800U (en) | 2013-11-20 |
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| CN2013202738675U Expired - Fee Related CN203298800U (en) | 2013-05-17 | 2013-05-17 | Power distribution intelligent monitoring system for broadcast transmitting station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154521A (en) * | 2016-04-08 | 2019-01-04 | 流线公司 | Ultrasonic liquid level sensor with reflector |
| CN109708724A (en) * | 2018-11-22 | 2019-05-03 | 国网浙江省电力有限公司丽水供电公司 | Outdoor ultrasonic water position detector system and control method |
| US11002587B2 (en) | 2016-04-08 | 2021-05-11 | Flowline, Inc. | Ultrasonic level sensor with sound trap |
-
2013
- 2013-05-17 CN CN2013202738675U patent/CN203298800U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154521A (en) * | 2016-04-08 | 2019-01-04 | 流线公司 | Ultrasonic liquid level sensor with reflector |
| US11002587B2 (en) | 2016-04-08 | 2021-05-11 | Flowline, Inc. | Ultrasonic level sensor with sound trap |
| CN109708724A (en) * | 2018-11-22 | 2019-05-03 | 国网浙江省电力有限公司丽水供电公司 | Outdoor ultrasonic water position detector system and control method |
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Granted publication date: 20131120 Termination date: 20180517 |