CN102564366B - Integrated monitoring system and method for rain and snow - Google Patents
Integrated monitoring system and method for rain and snow Download PDFInfo
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- CN102564366B CN102564366B CN201210005293.3A CN201210005293A CN102564366B CN 102564366 B CN102564366 B CN 102564366B CN 201210005293 A CN201210005293 A CN 201210005293A CN 102564366 B CN102564366 B CN 102564366B
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Abstract
The invention provides an integrated monitoring system for rain and snow. The monitoring system comprises a snow storage pool and a bracket on the surface of the snow storage pool; a first ultrasonic transceiver is arranged on the bracket; a second ultrasonic transceiver is arranged at the bottom of the snow storage pool; the monitoring system further comprises a main control module, a communication module and a monitoring module; the main control module is used for controlling the operation of the first and the second transceivers, analyzing and calculating the thickness data of snow stored in the snow storage pool, and controlling the communication module to send the thickness data to the monitoring module; the communication module is used for sending the thickness data to the monitoring module under the control of the main control module; the monitoring module is used for monitoring the thickness of the snow stored in the snow storage pool remotely; the ultrasonic transceivers and the communication module are electrically connected with the main control module respectively; and the communication module communicates with the monitoring module. The monitoring system has the advantages that no worker is required for on-site operation during the whole monitoring process; automatic and real-time snow thickness monitoring is realized completely; and the work intensity is effectively reduced.
Description
Technical field
The invention belongs to electric power monitoring field, relate in particular to a kind of sleet Integrated Monitoring System and monitoring method.
Background technology
The key player who the dependence of the various energy and electric energy is played the part of in the various energy due to the mankind, power transmission line becomes the main backbone network of human society energy transmission, transmission facility is of a great variety, and a lot of important transmission facilities are because its function or condition restriction have to be placed in open air.In the such Yi Ge of China region big country, it is very serious that various transmission facilities are subject to the erosion of ice and snow, in order to guarantee that various device normally works, need to monitor equipment. and ice and snow monitoring is a very important part wherein.Especially in China cold winter, outdoor large equipment usually needs thickly to monitor to guarantee that the running status of transmission facility is good to avenging.
Snow can form snow-broth by partial melting in the process of building up, and therefore the measurement of snow is divided into two parts, and a part is the thickness of the snow built up, the 2nd, melt the snow-broth that forms number.To snow thickness and snow-broth number measure in case relevant departments to snow measurement have an accurate data monitoring.
At present to the multiplex actual measurement of the detection of snow-broth, the advantage of this method is can obtain being worth more accurately, but its shortcoming is also significant, the method of this field survey not only can increase hand labor amount (power transmission line number of devices and of a great variety, the manpower needing is also relatively many), and in view of part transmission facility volume larger, and most of transmission facility is in outdoor feature, be not only difficult in operation but also a lot of situation that manpower can not arrive or because the dangerous attribute of its electric power has increased potential risk.So the more original monitoring method of the next employing of monitoring most applications to snow, as multiplex range estimation or the survey of cloth measure hand and the measurement under artificial work of some other light instrument.Its major defect is also to realize Automatic survey and real time implementation, and hand labor intensity is large.
Summary of the invention
The present invention is intended to solve sleet Integrated Monitoring System monitoring means in prior art can not realize Automatic survey and real time implementation, and the large technical matters of hand labor intensity, a kind of sleet Integrated Monitoring System that can realize monitoring means robotization and real time implementation is provided, and this sleet Integrated Monitoring System effectively reduces hand labor intensity.
The invention provides sleet Integrated Monitoring System, described monitoring system comprises a Chu Xue pond and is positioned at the support on the face of pond, Chu Xue pond;
Described support is provided with the first ultrasonic transmitter-receiver, and described the first ultrasonic transmitter-receiver for vertically sending ultrasound wave at the bottom of pond, Chu Xue pond;
Described Chu Xue pond is provided with the second ultrasonic transmitter-receiver at the bottom of pond, and described the second ultrasonic transmitter-receiver is for vertically sending ultrasound wave to pond, Chu Xue pond face;
Described supervisory system also comprises:
Main control module, for controlling, the first ultrasonic transmitter-receiver sends ultrasound wave and record receives this hyperacoustic time t1; And control the second ultrasonic transmitter-receiver transmission ultrasound wave and record this hyperacoustic time t2 of reception; And calculate storage snow thickness data in Chu Xue pond according to the time t1 of record and t2, communication control module sends to monitoring module by described storage snow thickness data simultaneously;
Communication module, for snowing described storage thickness data sent to monitoring module in the control of main control module;
Monitoring module, for receiving described storage snow thickness data so that the thick state of remote monitoring Chu Xue pond moderate snow;
Wherein, described ultrasonic transmitter-receiver, communication module are electrically connected to described main control module respectively, and described communication module is connected with described monitoring module communication.
Preferably, storage snow thickness data in described Chu Xue pond is H-V1*t1/2-V2* t2/2, and wherein, V1 is the aerial velocity of propagation of ultrasound wave, V2 is the velocity of propagation of ultrasound wave in water, and H is that the first ultrasonic transmitter-receiver is to the vertical range of the second ultrasonic transmitter-receiver.
Preferably, each ultrasonic transmitter-receiver comprises that one for launching hyperacoustic ultrasonic transmitter and a hyperacoustic ultrasonic receiver that reception reflects according to the steering order of main control module.
Preferably, support bottom is fixed on the pool wall of Chu Xuechi, and described support can be vertically flexible up and down.
Preferably, cantilever tip is fixed with the cross bar of a horizontal positioned, places described the first ultrasonic transmitter-receiver on described cross bar.
The present invention also provides a kind of method of work of above-mentioned sleet Integrated Monitoring System, comprises the following steps:
Step S100, main control module is controlled respectively the first ultrasonic transmitter-receiver and the second ultrasonic transmitter-receiver transmitting ultrasound wave and is received the ultrasound wave sending separately, records each ultrasonic transmitter-receiver from sending ultrasound wave to receiving hyperacoustic time separately simultaneously;
Step S200, main control module is according to the one-tenth-value thickness 1/10 of the snow in above-mentioned Time Calculation Chu Xue pond;
Step S300, main control module is sent to monitoring module by the one-tenth-value thickness 1/10 of described snow by communication module.
Preferably, at described step S100, specifically comprise:
The ultrasonic transmitter transmitting ultrasound wave of master control module controls the first ultrasonic transmitter-receiver also starts timing, and the ultrasonic receiver that records the first ultrasonic transmitter-receiver receives this hyperacoustic time t1;
Stop the work of the first ultrasonic transmitter-receiver, the ultrasonic transmitter of master control module controls the second ultrasonic transmitter-receiver transmitting ultrasound wave also starts timing, and the ultrasonic receiver that records the second ultrasonic transmitter-receiver receives this hyperacoustic time t2.
Preferably, the one-tenth-value thickness 1/10 that calculates the snow in Chu Xue pond described in described step S200 is specially: main control module calculates H1=V1*t1/2 according to the time t1 of record, calculates H2=V2* t2/2, finally obtains the one-tenth-value thickness 1/10 H3=H-H1-H2 of Chu Xue pond moderate snow; Wherein, V1 is the aerial velocity of propagation of ultrasound wave, V2 is the velocity of propagation of ultrasound wave in water, H1 is that the first ultrasonic transmitter-receiver is to the vertical range of the upper surface of Chu Xue pond moderate snow, H2 be the second ultrasonic transmitter-receiver to the vertical range of the lower surface of Chu Xue pond moderate snow, H is that the first ultrasonic transmitter-receiver is to the vertical range of the second ultrasonic transmitter-receiver.
Preferably, before described step S100, also comprise step: described main control module initialization is also controlled all ultrasonic transmitter-receivers and quit work.
The above technical scheme, by utilizing ultrasonic transmitter-receiver transmitting ultrasound wave, and calculate hyperacoustic time that receives, utilize two vertical range and each ultrasound waves between ultrasonic transmitter-receiver to receive from being transmitted into the one-tenth-value thickness 1/10 that hyperacoustic time can calculate Chu Xue pond moderate snow, whole observation process is without artificial execute-in-place, realized robotization and the real time implementation of avenging thick monitoring completely, this sleet Integrated Monitoring System effectively reduces hand labor intensity simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the sleet Integrated Monitoring System of an embodiment of the present invention.
Fig. 2 is that the concrete structure of the sleet Integrated Monitoring System of an embodiment of the present invention forms schematic diagram.
Embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Shown in Fig. 1 and Fig. 2, sleet Integrated Monitoring System provided by the present invention comprises a Chu Xue pond 4 and is positioned at the support 2 on the face of pond, Chu Xue pond;
Described support 2 is provided with the first ultrasonic transmitter-receiver 101, and described the first ultrasonic transmitter-receiver 101 can vertically send ultrasound wave at the bottom of 4 ponds, Chu Xue pond; When the first ultrasonic transmitter-receiver 101 sends ultrasound wave, ultrasound wave is vertically propagated towards the pond face in Chu Xue pond 4, when running into barrier, ultrasound wave vertically reflects back, the first ultrasonic transmitter-receiver 101 just can receive this ultrasound wave, sends ultrasound wave can calculate the distance between the first ultrasonic transmitter-receiver 101 and barrier to receiving hyperacoustic time according to the first ultrasonic transmitter-receiver 101.
Described Chu Xue pond is provided with the second ultrasonic transmitter-receiver 102 at the bottom of 4 ponds, and described the second ultrasonic transmitter-receiver 102 can vertically send ultrasound wave by 4 pond faces to Chu Xue pond; When the second ultrasonic transmitter-receiver 102 sends ultrasound wave, ultrasound wave is vertically propagated towards the pond face in Chu Xue pond 4, when running into barrier, ultrasound wave vertically reflects back, the second ultrasonic transmitter-receiver 102 just can receive this ultrasound wave, sends ultrasound wave can calculate the distance between the second ultrasonic transmitter-receiver 102 and barrier to receiving hyperacoustic time according to the second ultrasonic transmitter-receiver 102.
Described supervisory system also comprises main control module 200, for controlling the work of the first ultrasonic transmitter-receiver 101 and the second ultrasonic transmitter-receiver 102 thickness data of analytical calculation Chu Xue pond 4 storage snow, communication control module 300 sends to monitoring module 400 by storage snow thickness data simultaneously;
Communication module 300, for snowing storage thickness data sent to monitoring module 400 in the control of main control module 200;
Monitoring module 400, for the thick state of remote monitoring Chu Xue pond 4 moderate snow;
Described ultrasonic transmitter-receiver, communication module 300 are electrically connected to described main control module 200 respectively, described communication module 300 and described monitoring module 400 communications.
Shown in Fig. 2, first described Chu Xue pond 4 is placed in the place after needs monitoring snow, on the pool wall in described Chu Xue pond 4, is fixed with support 2, and in order to regulate the height of described support 2, preferably, described support 2 can be vertically flexible up and down.The first ultrasonic transmitter-receiver 101 is installed on described support 2, installation for the ease of the first ultrasonic transmitter-receiver 101, preferably, on the top of described support 2, be fixedly installed the cross bar 1 of a horizontal positioned, described cross bar 1 is for placing described the first ultrasonic transmitter-receiver 101, and described the first ultrasonic transmitter-receiver 101 can send ultrasound wave straight down perpendicular to the pond face in described Chu Xue pond.
At the bottom of the pond in described Chu Xue pond 4, be provided with the second ultrasonic transmitter-receiver 102, described the second ultrasonic transmitter-receiver 102 can send ultrasound wave straight up perpendicular to the pond face of Chu Xuechi.In snowy day or after snowing, in Chu Xue pond 4, can form storage snow, below after after a while, storage is avenged, a part will be melted into snow-broth 5, and what be positioned at snow-broth 5 tops is the snow 3 not melting, therefore thick while carrying out Real-Time Monitoring to avenging, main control module 200 need to be controlled the first ultrasonic transmitter-receiver 101 and the second ultrasonic transmitter-receiver 102 work, preferably described the first ultrasonic transmitter-receiver 101 and the second ultrasonic transmitter-receiver 102 comprise that respectively one for launching hyperacoustic ultrasonic transmitter and a hyperacoustic ultrasonic receiver that reception reflects according to the steering order of main control module.Main control module 200 is controlled the first ultrasonic transmitter transmitting ultrasound wave of the first ultrasonic transmitter-receiver 101 and is started timing, when running into the upper surface of snow 3, ultrasound wave can be reflected back, the ultrasonic receiver that main control module 200 is controlled the first ultrasound wave 101 receives this ultrasound wave, record receives this hyperacoustic time t1 simultaneously, according to this time t1, can calculate the distance H 1 between the first ultrasonic transmitter-receiver 101 and the upper surface of snow 3; In like manner, main control module 200 is controlled the second ultrasonic transmitter transmitting ultrasound wave of the second ultrasonic transmitter-receiver 102 and is started timing, when running into the lower surface of snow 3, ultrasound wave can be reflected back, the ultrasonic receiver that main control module 200 is controlled the second ultrasound wave 102 receives this ultrasound wave, record receives this hyperacoustic time t2 simultaneously, according to this time t2, can calculate the distance H 2 between the second ultrasonic transmitter-receiver 102 and the lower surface of snow 3, the i.e. degree of depth of snow-broth; Then according to the vertical range H between the first ultrasound wave 102 and the second ultrasound wave 103, can obtain avenging 3 thickness H3 is H-H1-H2, and wherein the vertical range H between the first ultrasound wave 102 and the second ultrasound wave 103 measures after can regulating at the height of support 2 in advance.
The detailed operation process of the integrated monitoring of the above sleet comprises the following steps:
Step S100, main control module 200 is controlled respectively the first ultrasonic transmitter-receiver 101 and the second ultrasonic transmitter-receiver 102 transmitting ultrasound waves and is received the ultrasound wave sending separately, records each ultrasonic transmitter-receiver from sending ultrasound wave to receiving hyperacoustic time separately simultaneously;
Step S200,200 of master control moulds are according to the one-tenth-value thickness 1/10 of the snow in above-mentioned Time Calculation Chu Xue pond;
Step S300, main control module 200 is sent to monitoring module 400 by the one-tenth-value thickness 1/10 of described snow by communication module 300.
Preferably, at described step S100, specifically comprise:
Main control module 200 is controlled the ultrasonic transmitter transmitting ultrasound wave of the first ultrasonic transmitter-receiver 101 and is started timing, ultrasound wave is reflected back after running into snow 3 upper surface, and the ultrasonic receiver that the ultrasonic receiver that main control module 200 is controlled the first ultrasonic transmitter-receivers 101 receives this ultrasound wave and records the first ultrasonic transmitter-receiver 102 receives this hyperacoustic time t1;
Stop the work of the first ultrasonic transmitter-receiver 101, main control module 200 is controlled the ultrasonic transmitter transmitting ultrasound wave of the second ultrasonic transmitter-receiver 102 and is started timing, ultrasound wave is reflected back after running into snow 3 lower surface, and the ultrasonic receiver that the ultrasonic receiver that main control module 200 is controlled the second ultrasonic transmitter-receivers 102 receives this ultrasound wave and records the second ultrasonic transmitter-receiver receives this hyperacoustic time t2.
Certainly, main control module also can first be controlled the second ultrasonic transmitter-receiver 102 and carry out work, then stop controlling again the first ultrasonic transmitter-receiver 101 after the second ultrasonic transmitter-receiver 102 and carry out work, first and second hyperacoustic work sequencings do not have particular order, but for the interference that can not cause measuring error or avoid two ultrasonic transmitter-receivers to work and bring simultaneously, preferably, before carrying out work, second ultrasonic transmitter-receiver of control need to stop the work of first ultrasonic transmitter-receiver.
Stating step S200 specifically comprises: main control module calculates H1=V1*t1/2 according to the time t1 of record, calculates H2=V2* t2/2, finally obtains the one-tenth-value thickness 1/10 H3=H-H1-H2 of Chu Xue pond moderate snow; Wherein, V1 is the aerial velocity of propagation of ultrasound wave, V2 is the velocity of propagation of ultrasound wave in water, H1 is that the first ultrasonic transmitter-receiver 101 is to the vertical range of the upper surface of Chu Xue pond 4 moderate snows 3, H2 is the vertical range that the second ultrasonic transmitter-receiver 102 arrives the lower surface of Chu Xue pond 4 moderate snows 3, and H is that the first ultrasonic transmitter-receiver of measurement is in advance to the vertical range of the second ultrasonic transmitter-receiver.
Described main control module 200 also carries out communication for controlling described communication module 300 with described monitoring module 400, and by communication module 300, sends the one-tenth-value thickness 1/10 H3 of the described snow calculating 3 to described monitoring module 400.Described communication module 300 can carry out communication by multiple communication modes and described monitoring module 400, as GPRS communication, and the modes such as 3G communication and wire communication.
Further, in order to improve job stability and the monitoring accuracy to electric power line ice-covering thickness of system, before described step S100, also comprise step: described main control module 200 initialization are also controlled all ultrasonic transmitter-receivers and quit work.So just can guarantee can misconnection not receive the ultrasound wave of other ultrasonic transmitter-receiver transmittings when main control module 200 is controlled any one ultrasonic transmitter-receiver work, guarantee the stability of system works, improve the monitoring accuracy of ice covering thickness.
The above technical scheme, by ultrasonic transmitter-receiver is set respectively with snowing on snow, record in advance two vertical range H between ultrasound wave, then the ultrasonic transmitter-receiver of avenging by control carries out work can calculate the upper surface of snow and the distance H of this ultrasonic transmitter-receiver 1, the ultrasonic transmitter-receiver snowing by control carries out work can obtain the lower surface of snow and the distance H 2 of this ultrasonic transmitter-receiver, finally can obtain the thickness H3=H-H1-H2 of snow.This monitoring scheme can realize automatic on-line monitoring, the thick data of the snow calculating can be sent to remote monitoring terminal, realizes remote monitoring, effectively reduces hand labor intensity.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. sleet Integrated Monitoring System, is characterized in that, described monitoring system comprises a Chu Xue pond and is positioned at the support on the face of pond, Chu Xue pond;
Described support is provided with the first ultrasonic transmitter-receiver, and described the first ultrasonic transmitter-receiver for vertically sending ultrasound wave at the bottom of pond, Chu Xue pond;
Described Chu Xue pond is provided with the second ultrasonic transmitter-receiver at the bottom of pond, and described the second ultrasonic transmitter-receiver is for vertically sending ultrasound wave to pond, Chu Xue pond face;
Described supervisory system also comprises:
Main control module, for controlling, the first ultrasonic transmitter-receiver sends ultrasound wave and record receives this hyperacoustic time t1; And control the second ultrasonic transmitter-receiver transmission ultrasound wave and record this hyperacoustic time t2 of reception; And calculate storage snow thickness data in Chu Xue pond according to the time t1 of record and t2, communication control module sends to monitoring module by described storage snow thickness data simultaneously;
Communication module, for snowing described storage thickness data sent to monitoring module in the control of main control module;
Monitoring module, for receiving described storage snow thickness data so that the thick state of remote monitoring Chu Xue pond moderate snow;
Wherein, described ultrasonic transmitter-receiver, communication module are electrically connected to described main control module respectively, and described communication module is connected with described monitoring module communication.
2. sleet Integrated Monitoring System according to claim 1, it is characterized in that, described storage snow thickness data in Chu Xuechi is H-V1*t1/2-V2* t2/2, wherein, V1 is the aerial velocity of propagation of ultrasound wave, V2 is the velocity of propagation of ultrasound wave in water, and H is that the first ultrasonic transmitter-receiver is to the vertical range of the second ultrasonic transmitter-receiver.
3. sleet Integrated Monitoring System according to claim 1, it is characterized in that, each ultrasonic transmitter-receiver comprises that one for launching hyperacoustic ultrasonic transmitter and a hyperacoustic ultrasonic receiver that reception reflects according to the steering order of main control module.
4. according to the sleet Integrated Monitoring System described in claim 1 or 3, it is characterized in that, support bottom is fixed on the pool wall of Chu Xuechi, and described support can be vertically flexible up and down.
5. sleet Integrated Monitoring System according to claim 4, is characterized in that, cantilever tip is fixed with the cross bar of a horizontal positioned, places described the first ultrasonic transmitter-receiver on described cross bar.
6. a method of work for sleet Integrated Monitoring System according to claim 1, is characterized in that, comprises the following steps:
Step S100, main control module is controlled respectively the first ultrasonic transmitter-receiver and the second ultrasonic transmitter-receiver transmitting ultrasound wave and is received the ultrasound wave sending separately, records each ultrasonic transmitter-receiver from sending ultrasound wave to receiving hyperacoustic time separately simultaneously;
Step S200, main control module is according to the one-tenth-value thickness 1/10 of the snow in above-mentioned Time Calculation Chu Xue pond;
Step S300, main control module is sent to monitoring module by the one-tenth-value thickness 1/10 of described snow by communication module.
7. method of work according to claim 6, is characterized in that, at described step S100, specifically comprises:
The ultrasonic transmitter transmitting ultrasound wave of master control module controls the first ultrasonic transmitter-receiver also starts timing, and the ultrasonic receiver that records the first ultrasonic transmitter-receiver receives this hyperacoustic time t1;
Stop the work of the first ultrasonic transmitter-receiver, the ultrasonic transmitter of master control module controls the second ultrasonic transmitter-receiver transmitting ultrasound wave also starts timing, and the ultrasonic receiver that records the second ultrasonic transmitter-receiver receives this hyperacoustic time t2.
8. method of work according to claim 7, it is characterized in that, the one-tenth-value thickness 1/10 that calculates the snow in Chu Xue pond described in described step S200 is specially: main control module calculates H1=V1*t1/2 according to the time t1 of record, calculate H2=V2*t2/2, finally obtain the one-tenth-value thickness 1/10 H3=H-H1-H2 of Chu Xue pond moderate snow; Wherein, V1 is the aerial velocity of propagation of ultrasound wave, V2 is the velocity of propagation of ultrasound wave in water, H1 is that the first ultrasonic transmitter-receiver is to the vertical range of the upper surface of Chu Xue pond moderate snow, H2 be the second ultrasonic transmitter-receiver to the vertical range of the lower surface of Chu Xue pond moderate snow, H is that the first ultrasonic transmitter-receiver is to the vertical range of the second ultrasonic transmitter-receiver.
9. method of work according to claim 6, is characterized in that, also comprises step before described step S100: described main control module initialization is also controlled all ultrasonic transmitter-receivers and quit work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210005293.3A CN102564366B (en) | 2012-01-10 | 2012-01-10 | Integrated monitoring system and method for rain and snow |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210005293.3A CN102564366B (en) | 2012-01-10 | 2012-01-10 | Integrated monitoring system and method for rain and snow |
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| CN102564366A CN102564366A (en) | 2012-07-11 |
| CN102564366B true CN102564366B (en) | 2014-08-20 |
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| CN105124745B (en) * | 2015-08-31 | 2016-11-16 | 中国烟草总公司广东省公司 | The detection method of Nicotiana tabacum L. thickness in a kind of tobacco leaf grading |
| WO2019223747A1 (en) * | 2018-05-23 | 2019-11-28 | 苏州宝时得电动工具有限公司 | Automatic snow sweeper and working method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393019A (en) * | 2008-10-31 | 2009-03-25 | 陕西长力石油科技开发有限公司 | Non-contact oil layer thickness detecting method |
| CN101482400A (en) * | 2009-02-11 | 2009-07-15 | 中国极地研究中心 | Sea ice thickness measurement apparatus and method |
| CN201812045U (en) * | 2010-09-14 | 2011-04-27 | 厦门瀛寰电子科技有限公司 | Ultrasonic snow depth measuring instrument |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6073311A (en) * | 1983-09-30 | 1985-04-25 | Sumitomo Electric Ind Ltd | Ultrasonic-wave water-level measuring apparatus |
| WO2006123977A1 (en) * | 2005-05-18 | 2006-11-23 | Fasitet Trollhättan Aktiebolag | A method for detecting ice on the surface of a fixed structure, a device for performing the method and a fixed structure provided with a device for detecting ice |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393019A (en) * | 2008-10-31 | 2009-03-25 | 陕西长力石油科技开发有限公司 | Non-contact oil layer thickness detecting method |
| CN101482400A (en) * | 2009-02-11 | 2009-07-15 | 中国极地研究中心 | Sea ice thickness measurement apparatus and method |
| CN201812045U (en) * | 2010-09-14 | 2011-04-27 | 厦门瀛寰电子科技有限公司 | Ultrasonic snow depth measuring instrument |
Non-Patent Citations (1)
| Title |
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| JP昭60-73311A 1985.04.25 |
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