CN204757983U - Long -range automatic current surveying system of natural river unmanned on duty hydrometric cableway - Google Patents
Long -range automatic current surveying system of natural river unmanned on duty hydrometric cableway Download PDFInfo
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- CN204757983U CN204757983U CN201520437101.5U CN201520437101U CN204757983U CN 204757983 U CN204757983 U CN 204757983U CN 201520437101 U CN201520437101 U CN 201520437101U CN 204757983 U CN204757983 U CN 204757983U
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Abstract
The utility model discloses a long -range automatic current surveying system of natural river unmanned on duty hydrometric cableway, its technical scheme install microwave emitter on hanging the case, set up the microwave receiving ware in the bank control room, and fish lead, current meter and the automatic signal that weeds the monitoring of surface of water speed sensor transmit through the microwave, hanging incasement installation light and camera, the image signal of illumination sign, camera shooting also transmits through the microwave, and LAN is sent with the received signal through the router through the microwave receiving ware in the bank control room, and central monitor and individual information terminal pass through the information intercommunication of LAN realization and this system. Pull at fish lead automatic tracking apparatus in addition and be connected with the haulage rope between pulley and the fish lead, keep the directionality of fish lead current meter. The utility model discloses the collection surveys, whole, as an organic whole, realized the long -range automatic current surveying target of natural river unmanned on duty hydrometric cableway, the staff need not on -the -spot current surveying, has reduced worker intensity of labour, has got rid of worker's work potential safety hazards, has improved work efficiency, measure finish back automatic generation XX hydrometric station depth measurement, test the speed record and flow calculation shows and submits the save to, satisfies streamflow intelligent management's requirement.
Description
technical field:
The utility model relates to a kind of natural river flow-measuring method, particularly relates to a kind of natural river unmanned hydrometric cableway remote auto flow measuring system.
background technology:
China is vast in territory, and north and south span is large, and have the torrid zone, subtropics and temperate zone, climate type complexity is various.China's water resource wretched insufficiency, be only equivalent to the world per capita owning amount 1/4; Distribution of water resources is extremely unbalanced, and affect seriously by landform, monsoon, rainfall distribution is extremely unbalanced.North insufficient water sources, has a surplus in southern water source.Quantity of precipitation change in time and space is large, and precipitation concentrates on very short rainy season; Severe water and soil erosion, China is one of country that soil erosion is the most serious in the world, and national soil erosion area reaches 3,670,000 km
2, account for 38% of area.Water resource pollution is serious, and one is natural pollution, and another kind is artificial pollution, and namely industrial waste water, city domestic sewage and agriculture water-break are to the pollution of water body.Therefore the monitoring of water quality and quantity seems particularly important.
At present, the method that the monitoring method of the discharge of river generally adopts cableway and hydrological instrument to combine, wherein cableway comprises main rope, rope circuit and secondary drag-line, driving frame and fish lead, current meter etc., driving frame reciprocates along main rope, fish lead is suspended to below driving frame by rope circuit, is moved by cableway electric winch driving fish lead level, vertical direction.The rivers current information of fish lead, current meter monitoring, only can be transferred to the display of pulpit, bank, store.LAN (Local Area Network) or internet can't be uploaded to, realize and control center or personal information terminal intercommunication.
Existing hydrometric cableway existing problems: 1, the signal transmission effect of fish lead monitoring is bad, and adopt double-audio signal wireless network transmissions, signal is easily interfered, and especially adverse weather conditions is larger, causes Monitoring Data inaccurate.2, dragrope is without locating device, affects, walk asynchronous, affect monitoring effect with fish lead by secondary drag-line and dragrope self gravitation.3, when northern river rises, pasture and water, floating thing too much, cause current meter to monitor, or monitoring effect are not good, can not reach the object of monitoring river water yield change.
utility model content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provides a kind of and easily implements, monitoring effect is good, accurate positioning, efficiently natural river unmanned hydrometric cableway remote auto flow measuring system.
The technical solution of the utility model is:
A kind of natural river unmanned hydrometric cableway remote auto flow measuring system, comprise cross the river main push-towing rope and secondary drag-line, below main push-towing rope, rope circuit is set, rope circuit one end connects box, one end connection hangs on the driving frame on main push-towing rope, box is connected with the electric winch in pulpit, bank by rope circuit, described secondary drag-line is provided with fish lead autotracker, road wheel and traction electric machine is provided with in fish lead autotracker, fish lead and automatic weeding water surface speed measuring device are installed in described box, this fish lead is provided with current meter, traction rope is connected with between described fish lead autotracker and fish lead, described fish lead can move up and down under the effect of lifting rope and lifting motor, described automatic weeding water surface speed measuring device can move up and down under the effect of electric pushrod mechanism, described box is provided with microwave emitter, described bank is provided with microwave receiver in pulpit, the signal of described fish lead and the monitoring of automatic weeding water surface speed measuring device is transmitted by microwave, illuminating lamp and video camera are installed in described box, the picture signal of illumination sign, video camera shooting by microwave transmission to pulpit, bank, pulpit, described bank is sent to LAN (Local Area Network) by the signal of microwave receiving by router, and center monitoring room and personal information terminal realize information mutual communication by LAN (Local Area Network) and this system.
The fixed mount of described fish lead autotracker is respectively arranged with two travel switches, two travel switches are connected with traction electric machine; Described fixed mount is connected with automatic tracking pole by rotating mechanism; The inner of described automatic tracking pole is between two travel switches, and the outer end of described automatic tracking pole is connected with traction rope, and described automatic tracking pole can contact with two travel switches respectively.
Be respectively arranged with two road wheels in described fish lead autotracker, at least one road wheel is connected with traction electric machine by gear train; Described fish lead autotracker is provided with shell protection.
Arrange fish lead angle sheave and lifting motor in described box, described lifting motor is connected with advance decline line roller by speed reduction unit; Described advance decline line roller is wound with lifting rope, the lower end of this lifting rope is connected with fish lead, described lifting rope passes from the rotor wheel of fish lead angle sheave, drive rotor wheel rotates, described rotor wheel drives the live-rollers of fish lead angle sheave to rotate, described live-rollers is wound with traction rope, after the haul-in sheave of fish lead tracker is walked around in the outer end of this traction rope, is fixed on the front end of fish lead.
Described automatic weeding water surface speed measuring device comprises housing and impeller; described impeller is arranged on impeller axle; one end of described impeller axle is connected with impeller scrambler; the cross section of described impeller is U-lag structure; described impeller axle is connected with impeller motor; described impeller motor is arranged on described protection casing, and described protection casing is connected with electric pushrod mechanism.
Described box is provided with fish lead steady arm, between described fish lead steady arm and box, is provided with stop means; In described box, electric pushrod is installed, provides power for automatic weeding water surface speed measuring device moves up and down, described electric pushrod mechanism is provided with described microwave emitter.
Be provided with battery pack, controller and water surface stop in described box, be provided with solar panels outside described box, these solar panels provide supplementary power supply for described accumulator.
The beneficial effects of the utility model are:
1, the utility model integrates survey, whole, calculation, achieve the target of unmanned hydrometric cableway remote auto flow measurement, staff is without the need to on-the-spot measurement, reduce worker's labour intensity, eliminate worker's work hidden danger, improve work efficiency, measurement terminates rear automatic generation XX hydrometric station depth measurement, test the speed record and flow rate calculation table submission preservation, and measuring accuracy reaches hydrological industry ministerial standard and code requirement, all technical meets the requirement about hydrologic survey specification, technical standard.
2, the river signal of the utility model fish lead, current meter and automatically weeding water surface speed measuring device monitoring adopts the mode of microwave to be transferred to pulpit, bank, and is connected with control center or personal information terminal by LAN (Local Area Network), stores and show, and realizes information mutual communication.Signal transmissions is accurate, quick, improves monitoring effect.In addition, pulpit, bank is connected with center monitoring room by LAN (Local Area Network), utilizes existing network cost lower and good stability.
3, the utility model can set up several data model, automatically analytical calculation is carried out according to relevant hydrologic survey specification, technical standard to image data, guarantee that data reach hydrological data reduction code requirement, realize the target calls such as various reported data automatically calculates, fills in, preservation.
4, the utility model Control Room operation interface integrate video monitoring, voice message, automatically generate and amendment, the omnidistance preview of measuring process, each measuring point mend surveys, resurvey, data calculate and preserve, measure the functions such as real-time display, measurement function is complete, workable.
5, the utility model directed traction device is provided with two travel switches, can adjust the keying of traction electric machine at any time according to the shift position of fish lead and turn to, thus fish lead oriented tracking device is consistent with fish lead at any time, reduces the distortion of Monitoring Data.
6, the secondary drag-line of the utility model is provided with two road wheels and contacts with secondary drag-line, good stability, and at least one road wheel is connected with traction electric machine, reciprocates along secondary drag-line.
7, the utility model automatic weeding water surface speed measuring device is arranged on box, the situation in river can be monitored when there being the floating things such as pasture and water, also the situation in river can be monitored when property river flood in mountain area rises suddenly and sharply and breaks, this device is driven by electric pushrod mechanism, and freely, work efficiency is high in lifting, impeller is curved slot arrangement in addition, after impeller enters water, current, pasture and water promote impeller motion, and pasture and water Automatic-falling when impeller is left the water, tests the speed effective.
8, fish lead angle sheave is provided with in the utility model box, this fish lead angle sheave contacts with fish lead lifting rope, and the live-rollers of fish lead angle sheave is wound with traction rope, and moving up and down of fish lead drives live-rollers to rotate, make traction rope pack up or release simultaneously, make fish lead be positioned at gaging section position all the time.
9, reasonable in design, the stable performance of the utility model, reliable, easy and simple to handle, and control by real-time performance remote centralized flow measurement, there is good popularizing value, economic benefit and social benefit obvious.
accompanying drawing illustrates:
Fig. 1, utility model works principal diagram are intended to.
Fig. 2, utility model works structural representation;
Fish lead autotracker structural representation in Fig. 3, Fig. 2;
The autotracker of fish lead shown in Fig. 4, Fig. 3 vertical view;
The side view of fish lead steady arm in Fig. 5, Fig. 2;
The side view of fish lead angle sheave in Fig. 6, Fig. 2.
embodiment:
Embodiment: see Fig. 1-Fig. 6, in figure, 1-traction power source line, the automatic tracking pole of 2-, 3-rotating mechanism, 4-fixed mount, 5-autotracking unit shell, 6-travel switch, 7-road wheel, 8-traction electric machine, the secondary drag-line of 9-, 10-traction rope, 11-fish lead, 12-automatic weeding water surface speed measuring device, 13-protects casing, 14-illuminating lamp, 15-accumulator, 16-controller, 17-electric pushrod, 18-box, 19-power-supply controller of electric, 20-microwave emitter, 21-push-rod electric machine, 22-fish lead steady arm, 23-rope circuit, 24-fish lead angle sheave, 25-lifting motor, 26-advance decline line roller, 27-signal wire distributor, 28-water surface stop, 29-fish lead signal wire, 30-video camera, 31-head tower, 32-fixed pulley, 33-driving frame, 34-crosses the river main push-towing rope, 35-pulpit, 36-center monitoring room.
Natural river unmanned hydrometric cableway remote auto flow measuring system, its technical scheme is:
A, river course is arranged and to cross the river main push-towing rope 34 and secondary drag-line 9, below main push-towing rope, arrange rope circuit 23, rope circuit 23 one end connects box 18, and one end connects the driving frame 33 hung on main push-towing rope.Secondary drag-line 9 arranges fish lead autotracker, box 18 is connected with the electric winch in pulpit, bank 35 by rope circuit 23, realize forward and backward movement and move up and down, road wheel 7 and traction electric machine 8 are set in fish lead autotracker, road wheel 7 contacts with secondary drag-line 9, is connected with traction rope 10 between fish lead autotracker and fish lead 11;
B, fish lead 11 and automatic weeding water surface speed measuring device 12 are installed in box 18, fish lead 11 can move up and down under the effect of lifting rope and advance decline line roller 26, automatic weeding water surface speed measuring device 12 can move up and down under the effect of electric pushrod 17, box 18 is installed microwave emitter 20, in pulpit, bank 35, microwave receiver is set, the signal received to pulpit 35, then is sent to LAN (Local Area Network) by router by microwave transmission by the signal of fish lead 11 and the monitoring of automatic weeding water surface speed measuring device 12.
C, in box 18, illuminating lamp 14 and video camera 30 are installed, video camera 30 take image by microwave transmission to pulpit, bank 35, be sent to LAN (Local Area Network) by router, center monitoring room 36 and personal information terminal receive all signals by LAN (Local Area Network), realize information mutual communication with this system.
The fixed mount 4 of fish lead autotracker arranges two travel switches 6, two travel switches 6 are connected with traction electric machine 8 respectively, fixed mount 4 is connected with automatic tracking pole 2 by rotating mechanism 3, the inner of automatic tracking pole 2 is between two travel switches 6, the outer end of automatic tracking pole 2 is connected with traction rope 10, automatic tracking pole 2 contacts with two travel switches 6 respectively, changes the rotation direction of traction electric machine 8.
Two road wheels 7 are set in fish lead autotracker, at least one road wheel 7 is connected with traction electric machine 8 (in figure, two road wheels are all connected with traction electric machine) by gear train, fish lead autotracker is provided with shell 5, prevents internal electrical device to be caught in the rain.
Fish lead angle sheave 24 and advance decline line roller 26 are set in box 18, advance decline line roller 26 is connected with lifting motor 25 by worm reducer, advance decline line roller 26 is wound with lifting rope, the lower end of this lifting rope is connected with fish lead 11, this lifting rope passes through from fish lead angle sheave 24, drive rotational line roller to rotate, the live-rollers of fish lead angle sheave 24 is wound with traction rope 10, after the haul-in sheave of fish lead tracker is walked around in the outer end of this traction rope 10, be fixed on the front end of fish lead 11; When fish lead 11 moves downward, the distance between fish lead tracker and fish lead 11 increases, and fish lead angle sheave 24 rotates, and the traction rope 10 that the live-rollers of fish lead angle sheave 24 is wound around unclamps, and increases with the distance adapted between fish lead tracker and fish lead 11.
Automatic weeding water surface speed measuring device 12 comprises housing 13 and impeller, and impeller is arranged on impeller axle, and one end of impeller axle is connected with impeller scrambler, and the cross section of impeller is U-lag structure, and motor is fixed on protection casing 13, box 18 is provided with fish lead steady arm 22, position limiting structure is provided with between fish lead steady arm 22 and box 18, ensure fish lead 11 safe retraction, when fish lead 11 rises to box 18 inner chamber, fish lead steady arm 22 blocks fish lead 11, prevent it from rotating, in box 18, signal wire distributor 27 is installed, this signal wire distributor 27 provides signal-transmitting cable for fish lead 11, battery pack 15 is installed in box 18, controller 16 and water surface stop 28, water surface stop 28 has a segment distance apart from box 18, enter in water to prevent box 18, solar panels are outside equipped with as required at box 18, these solar panels provide supplementary power supply for accumulator 15.
When measuring the discharge of river, in pulpit, bank 35, electric winch, PLC, AC converter control box 18 and move along main push-towing rope level, vertical direction, have controller 16 in box 18, lifting motor 25 control fish lead and move up and down, make box 18 can in the flow measurement transversal section in river different vertical line, same relative position monitoring water velocity; Can also, in the different relative position monitoring water velocities of same vertical line, reach tunneling boring multi-point monitoring effect, and Monitoring Data can Real time displaying.Daily monitoring adopts fish lead 11 to carry out, when have the floating things such as pasture and water or flood rise rate too fast time, adopt automatic weeding water surface speed measuring device 12 to monitor.
Fish lead 11 is also furnished with an incremental encoder in addition, monitors in real time fish lead 11 adjustable height.Around fish lead 11, the sensors such as multiple travel switches are housed, for system provides river bed, the water surface, flow velocity signal.
Be provided with PLC, AC converter and rotary encoder in pulpit, bank 35, control electric winch etc., registration during guarantee system flow measurement, operates steadily.Controller in box 18, controls fish lead 11 and the folding and unfolding of automatic weeding water surface speed measuring device 12, location, illumination and video switch, and the collection of various measuring-signal, process etc.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. a natural river unmanned hydrometric cableway remote auto flow measuring system, comprise cross the river main push-towing rope and secondary drag-line, below main push-towing rope, rope circuit is set, rope circuit one end connects box, one end connection hangs on the driving frame on main push-towing rope, box is connected with the electric winch in pulpit, bank by rope circuit, it is characterized in that: described secondary drag-line is provided with fish lead autotracker, road wheel and traction electric machine is provided with in fish lead autotracker, fish lead and automatic weeding water surface speed measuring device are installed in described box, this fish lead is provided with current meter, traction rope is connected with between described fish lead autotracker and fish lead, described fish lead can move up and down under the effect of lifting rope and lifting motor, described automatic weeding water surface speed measuring device can move up and down under the effect of electric pushrod mechanism, described box is provided with microwave emitter, described bank is provided with microwave receiver in pulpit, the signal of described fish lead and the monitoring of automatic weeding water surface speed measuring device is transmitted by microwave, illuminating lamp and video camera are installed in described box, the picture signal of illumination sign, video camera shooting by microwave transmission to pulpit, bank, pulpit, described bank is sent to LAN (Local Area Network) by the signal of microwave receiving by router, and center monitoring room and personal information terminal realize information mutual communication by LAN (Local Area Network) and this system.
2. natural river unmanned hydrometric cableway remote auto flow measuring system according to claim 1, it is characterized in that: the fixed mount of described fish lead autotracker is respectively arranged with two travel switches, two travel switches are connected with traction electric machine; Described fixed mount is connected with automatic tracking pole by rotating mechanism; The inner of described automatic tracking pole is between two travel switches, and the outer end of described automatic tracking pole is connected with traction rope, and described automatic tracking pole can contact with two travel switches respectively.
3. natural river unmanned hydrometric cableway remote auto flow measuring system according to claim 1, is characterized in that: be respectively arranged with two road wheels in described fish lead autotracker, at least one road wheel is connected with traction electric machine by gear train; Described fish lead autotracker is provided with shell protection.
4. natural river unmanned hydrometric cableway remote auto flow measuring system according to claim 1, it is characterized in that: arrange fish lead angle sheave and lifting motor in described box, described lifting motor is connected with advance decline line roller by speed reduction unit; Described advance decline line roller is wound with lifting rope, the lower end of this lifting rope is connected with fish lead, described lifting rope passes from the rotor wheel of fish lead angle sheave, drive rotor wheel rotates, described rotor wheel drives the live-rollers of fish lead angle sheave to rotate, described live-rollers is wound with traction rope, after the haul-in sheave of fish lead tracker is walked around in the outer end of this traction rope, is fixed on the front end of fish lead.
5. natural river unmanned hydrometric cableway remote auto flow measuring system according to claim 1; it is characterized in that: described automatic weeding water surface speed measuring device comprises housing and impeller; described impeller is arranged on impeller axle; one end of described impeller axle is connected with impeller scrambler; the cross section of described impeller is U-lag structure; described impeller axle is connected with impeller motor, and described impeller motor is arranged on protection casing, and described protection casing is connected with electric pushrod mechanism.
6. natural river unmanned hydrometric cableway remote auto flow measuring system according to claim 1, is characterized in that: described box is provided with fish lead steady arm, is provided with stop means between described fish lead steady arm and box; In described box, electric pushrod is installed, provides power for automatic weeding water surface speed measuring device moves up and down, described electric pushrod mechanism is provided with described microwave emitter.
7. natural river unmanned hydrometric cableway remote auto flow measuring system according to claim 1, it is characterized in that: battery pack, controller and water surface stop are installed in described box, be provided with solar panels outside described box, these solar panels provide supplementary power supply for described accumulator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437101.5U CN204757983U (en) | 2015-06-24 | 2015-06-24 | Long -range automatic current surveying system of natural river unmanned on duty hydrometric cableway |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520437101.5U CN204757983U (en) | 2015-06-24 | 2015-06-24 | Long -range automatic current surveying system of natural river unmanned on duty hydrometric cableway |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949660A (en) * | 2015-06-24 | 2015-09-30 | 王振兴 | Natural river unattended operation hydrology cableway remote automatic flow measuring method and system |
| CN105510624A (en) * | 2016-02-03 | 2016-04-20 | 中国电建集团中南勘测设计研究院有限公司 | Trail-type radar wave online current measuring system based on double-track cableway |
| CN106629416A (en) * | 2017-01-17 | 2017-05-10 | 大连理工大学 | Light-small type splicable obstacle avoidance hoisting equipment |
| CN107806866A (en) * | 2017-12-01 | 2018-03-16 | 李鹏飞 | A kind of servicing unit for improving hydrometric cableway flow measurement ability |
| CN107902547A (en) * | 2017-10-27 | 2018-04-13 | 郑州星睿水利科技有限公司 | Full-automatic hydrological measures hanging box |
| CN109297542A (en) * | 2018-11-15 | 2019-02-01 | 长江水利委员会水文局长江中游水文水资源勘测局 | Hydrometric cableway remote online control system |
| CN110031050A (en) * | 2019-04-03 | 2019-07-19 | 昆明理工大学 | A kind of natural river course flow measurement device |
| CN110207679A (en) * | 2019-06-28 | 2019-09-06 | 安徽沃特水务科技有限公司 | A kind of automatic airline equipment of hydrology flow measurement wireless remote control |
| CN112146716A (en) * | 2020-09-27 | 2020-12-29 | 唐山海森电子股份有限公司 | Silt and flow measuring system for channel |
| CN113654601A (en) * | 2021-10-21 | 2021-11-16 | 成都万江港利科技股份有限公司 | Automatic river channel section flow measuring system and method |
| CN115876170A (en) * | 2023-01-18 | 2023-03-31 | 山西旭睿金盟科技有限公司 | River channel flow area detection device and detection method |
-
2015
- 2015-06-24 CN CN201520437101.5U patent/CN204757983U/en not_active Withdrawn - After Issue
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949660A (en) * | 2015-06-24 | 2015-09-30 | 王振兴 | Natural river unattended operation hydrology cableway remote automatic flow measuring method and system |
| CN105510624A (en) * | 2016-02-03 | 2016-04-20 | 中国电建集团中南勘测设计研究院有限公司 | Trail-type radar wave online current measuring system based on double-track cableway |
| CN105510624B (en) * | 2016-02-03 | 2019-08-09 | 中国电建集团中南勘测设计研究院有限公司 | A kind of online flow measuring system of towed radar wave based on double track cableway |
| CN106629416A (en) * | 2017-01-17 | 2017-05-10 | 大连理工大学 | Light-small type splicable obstacle avoidance hoisting equipment |
| CN107902547B (en) * | 2017-10-27 | 2019-05-03 | 郑州星睿水利科技有限公司 | Full-automatic hydrological measures hanging box |
| CN107902547A (en) * | 2017-10-27 | 2018-04-13 | 郑州星睿水利科技有限公司 | Full-automatic hydrological measures hanging box |
| CN107806866A (en) * | 2017-12-01 | 2018-03-16 | 李鹏飞 | A kind of servicing unit for improving hydrometric cableway flow measurement ability |
| CN109297542A (en) * | 2018-11-15 | 2019-02-01 | 长江水利委员会水文局长江中游水文水资源勘测局 | Hydrometric cableway remote online control system |
| CN110031050A (en) * | 2019-04-03 | 2019-07-19 | 昆明理工大学 | A kind of natural river course flow measurement device |
| CN110207679A (en) * | 2019-06-28 | 2019-09-06 | 安徽沃特水务科技有限公司 | A kind of automatic airline equipment of hydrology flow measurement wireless remote control |
| CN112146716A (en) * | 2020-09-27 | 2020-12-29 | 唐山海森电子股份有限公司 | Silt and flow measuring system for channel |
| CN113654601A (en) * | 2021-10-21 | 2021-11-16 | 成都万江港利科技股份有限公司 | Automatic river channel section flow measuring system and method |
| CN113654601B (en) * | 2021-10-21 | 2022-02-18 | 成都万江港利科技股份有限公司 | Automatic river channel section flow measuring system and method |
| CN115876170A (en) * | 2023-01-18 | 2023-03-31 | 山西旭睿金盟科技有限公司 | River channel flow area detection device and detection method |
| CN115876170B (en) * | 2023-01-18 | 2023-05-09 | 山西旭睿金盟科技有限公司 | River channel flow area detection device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151111 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |