CN101644929A - Mine locomotive running state detection device adopting railway vehicle axle counter and detection method therefor - Google Patents
Mine locomotive running state detection device adopting railway vehicle axle counter and detection method therefor Download PDFInfo
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Abstract
The invention relates to a mine locomotive running state detection device adopting a railway vehicle axle counter and a detection method therefor. The device consists of a computer, a communicator, acontrol substation, the railway vehicle axle counter and a signal machine. In the system, the technology is implemented by two ways: (1) embedded program way is used for realizing track locomotive axle counting detection algorithm; and (2) an axle counting interface circuit is based on the detection method. The axle counting detection algorithm is implemented in the control substation and has thecomplete functions formed by five parts which are a signal sampling and processing module, a direction processing module, an axle counting statistical module, a vehicle speed judging module and a vehicle locating module; RS232 bus communication is adopted between the computer and the communicator, FSK bus communication is adopted between the communicator and the control substation, and a two-wirecurrent-mode interface is arranged between the control substation and the railway vehicle axle counter. The invention can be used for detecting and processing the dynamic-state operation process of atrack locomotive, and realizes the functions of direction judgment, speed measurement and calculation, data statistics and locomotive location.
Description
Technical field
The present invention relates to a plurality of technical fields such as Computer Control Technology, field bus communication technology, embedded system development technology, mine explosion designing technique, the rail locomotive running status that is mainly used in all kinds of mines detects.
Background technology
Current, rail locomotive transportation system is still the principal mode of mine transportation, when carrying out nonpassage of signal control, is prerequisite with locomotive positioning accurately usually.All more or less there are some technical matterss in locomotive positioning sensor, locomotive positioning detection means at present, the demand that can not adapt to the track transport monitoring fully, for example: the one, adopt stringing or carry out signals collecting near the mode of switch, this kind mode moving contact is more and can not discern direction of traffic, railway carriage number and speed; The 2nd, adopt infrared receive mode, this mode poor anti jamming capability, same existence can not be discerned direction of traffic, railway carriage number and speed; The 3rd, the wireless sensing detection mode, this mode easily produces the fuzzy region between interval and the interval, the main haulage roadway of two-orbit particularly can't solve the accurate location and the direction determining problem of moving target at all, is not rigorous for the interlocked control of teleseme and track switch.Historical accident conditions explanation, the unreliable probability that will make transport signal system security incident occur of locomotive positioning mode obviously increases, so, press for the accurate location that a kind of technology can realize rail locomotive.Patent of the present invention adopts the core sensor of track axle count device as travel condition of vehicle, the track transport circuit is divided into some transportation sections, axle count sensor is installed in the track inboard, be articulated on the control substation, by to sampling processing through the meter axle induced signal of the vehicle axles on the rail, realized reliable detection, improved the ore deposit and advanced the security level of track transport monitoring mine locomotive running state and position.
Summary of the invention
The present invention is for solving the security hidden trouble that the locomotive positioning detection technique exists in the above-mentioned mine rail transportation, a kind of mine locomotive running state detection technique that adopts the track axle count device is provided, present technique adopts the core sensor of track axle count device as locomotive positioning, can carry out locomotive position judges, also can detect information such as the speed of a motor vehicle, traffic direction, railway carriage number, make the computing of system-level transportation dispatching interlocking of signals more rigorous, reliable.
Technical scheme of the present invention is as follows:
Adopt the mine locomotive running state detection device of track axle count device, form by computing machine, communicator, control substation, track axle count device and teleseme, the signal output part of described track axle count device is connected with control substation signal input part, the signal input part of teleseme is connected with control substation signal output part, the control substation is connected by communication bus with described communicator, and communicator is connected with computing machine both-end connection.
Adopting the mine locomotive running state detection device of track axle count device, is two-wire system current mode interface circuit between control substation and the track axle count device.
Adopt the mine locomotive running state detection device of track axle count device, on the mine locomotive track, each check point is installed a pair of wheel counting apparatus and is respectively left wheel counting apparatus and right wheel counting apparatus, about two wheel counting apparatus be installed in respectively on two rails, interval one determining deviation, wheel counting apparatus sensitive surface and rail level keep suitable spacing; When having vehicle to pass through on the track, whenever pass through the axletree of a wheel, the left wheel counting apparatus of control substation detects interface circuit and right wheel counting apparatus detects interface circuit generation current pulse signal sequence, current pulse signal width and wheel pass through velocity correlation, the control substation is by the sampling processing to left wheel counting apparatus sequences of pulsed signals and right meter axle sequences of pulsed signals, realization is to direction of traffic, speed, the judgement of the number of axle, result of determination reports computing machine, and computing machine is according to the installation site of wheel counting apparatus and the direction of traffic that reports, speed, number of axle information is determined the position of rail vehicle.
The detection method of pick-up unit, the control substation is made up of signal sampling processing module, direction processing module, meter axle statistical module, speed of a motor vehicle determination module, vehicle location module.
The detection method of pick-up unit, described signal sampling processing module, its disposal route is: the control substation is the cycle sequences of pulsed signals that wheel counting apparatus detects interface to be sampled with 5ms, and sampling obtains two kinds of possible signals: logical one signal and logic zero signal; Two counters are set respectively: 1 counter and 0 counter, 1 counter is counted 1 signal, and 0 counter is counted 0 signal, and Spindle Status is effectively counted in one of output when 1 counter is counted N 1 signal continuously; If 0 signal occurs when counting 1 signal, then 1 counter is put N, if former count value more than or equal to N, or is changed to 0, if former count value less than N, is removed 1 counter when 0 counter is counted M 0 signal continuously.
The detection method of pick-up unit, described direction processing module, its disposal route is: when wheel through out-of-date, because left wheel counting apparatus and right wheel counting apparatus installation site be 200mm at interval, there is mistiming order successively in effective axle-counting signal that left side wheel counting apparatus and right wheel counting apparatus provide, and Ta1, Ta2 are the interval time of the wheel shaft of adjacent wheel by left wheel counting apparatus and right wheel counting apparatus; If Ta1＜＜Ta2, think that then the adjacent wheel that passes through is a up direction, otherwise be down direction; Whenever pass through the axletree of a wheel, just can determine direction according to the time relationship Ta1 and the Ta2 of it and preceding two axles, then the number of times of the uplink and downlink direction judged is counted respectively, at last according to the direction of traffic of the count value final decision permutation car of up direction and down direction;
The specific implementation method is as follows:
A), axial direction counting:
Ta1≤2Ta2:DA adds 1, and DT adds 1
Ta2≤2Ta1:DB adds 1, and DT adds 1
Other: DT adds 1
B), direction of traffic is determined
DT ≠ 0 and DA/DT 〉=60% and DB/DT≤15% direction is A
DT ≠ 0 and DB/DT 〉=60% and DA/DT≤15% direction is B
DT=0 or other direction are not clear
DA is the up direction counter, and DB is the down direction counter, and DT is the total differentiation time counter of axial direction.
The detection method of pick-up unit, described meter axle statistical module, its statistical method is: be respectively left wheel counting apparatus and right wheel counting apparatus and set up two counters respectively, be used to add up the quantity of meter axle separately, be called A axle counter CA and B axle counter CB; According to the result of signal sampling processing module, the effective meter Spindle Status that whenever detects a left wheel counting apparatus just adds 1 with CA, and the effective meter Spindle Status that whenever detects a right wheel counting apparatus just adds 1 with CB; If first of a car effectively counted Spindle Status, initial work buffer zone then, not leaking axle handles, if double processing is effective meter Spindle Status of the same side, think that then the wheel counting apparatus axle of opposite side has leaked once, leak axle number for the respective shaft counter adds 1, the result of meter axle statistical module comprises: the left side meter number of axle, the right meter number of axle, a left side are leaked the number of axle, are rightly leaked the number of axle, first leak spool number.
The detection method of pick-up unit, described speed of a motor vehicle determination module, its decision method is: according to the left and right sides mistiming Ta1 and the Ta2 of every pair of meter axle, and direction and mounting distance, can calculate the speed characterization value that every pair of wheel shaft passes through, by the continuous average of speed characterization value is handled, obtain the instantaneous velocity of vehicle by this check point.9, the detection method of pick-up unit according to claim 4, it is characterized in that: described vehicle location module, its method is: by wheel counting apparatus haulage track is divided into several detector segments on the track transport circuit, when vehicle passes through wheel counting apparatus, preceding two wheel shafts are by just thinking that vehicle has entered section, and last wheel shaft just thinks that by back 2s vehicle has left section.
Useful technique effect of the present invention is: the present invention compares with other similar inventions, the running status that can realize rail locomotive detects, detection information comprises locomotive operation direction, speed, railway carriage quantity, can thoroughly stop to transport this potential safety hazard of fuzzy division of section, provide safer, reliable detection foundation for carrying out the computing of system-level locomotive transportation dispatching interlocking.
Description of drawings
Fig. 1 a is an overall construction drawing of the present invention.
Fig. 1 b is that algorithm structure functional module of the present invention is divided synoptic diagram.
Fig. 1 c is meter repacking survey of the present invention and current foldback circuit schematic diagram.
Fig. 2 is that vehicle is crossed the axis signal synoptic diagram among the present invention.
Fig. 3 is a vehicle up direction pulse detection sequence synoptic diagram among the present invention.
Fig. 4 is the present invention's repacking method of determining and calculating overall procedure synoptic diagram of falling into a trap.
Fig. 5 is axle-counting signal sampling work buffer zone figure of the present invention.
Embodiment
Adopt the mine locomotive running state detection technique of track axle count device, as shown in Figure 1a, the detection system that constitutes present technique is made up of computing machine 4, communicator 1, control substation 2, track axle count device 3 and teleseme 5, present technique is divided into the dual mode embodiment in system, the one, interface circuit, the 2nd, rail vehicle meter repacking survey method are surveyed in meter repacking; Adopt the RS232 bus communication between computing machine 4 in the detection system and the communicator 1, adopt the FSK bus communication between communicator 1 and the control substation 2, detect interface for the two-wire system current mode between control substation 2 and the track axle count device 3.
On the mine locomotive track, each check point is installed a pair of wheel counting apparatus 3, left wheel counting apparatus and right wheel counting apparatus, and two wheel counting apparatus are installed in respectively on two rails, interval 200mm, wheel counting apparatus 3 sensitive surface and rail level keep the spacing of 45mm-55mm; When having vehicle to pass through on the track, whenever pass through the axletree of a wheel, the left wheel counting apparatus of control substation 2 detects interface circuit and right wheel counting apparatus detects interface circuit generation current pulse signal sequence, current pulse signal width and wheel pass through velocity correlation, control substation 2 is by the sampling processing to left wheel counting apparatus sequences of pulsed signals and right meter axle sequences of pulsed signals, realization is to direction of traffic, speed, the judgement of the number of axle, result of determination reports computing machine, and computing machine is according to the installation site of wheel counting apparatus and the direction of traffic that reports, speed, number of axle information is determined the position of rail vehicle.
Shown in Fig. 1 b, the trace routine that realizes locomotive meter repacking method of determining and calculating adopts OO modular design method, and general function is realized by signal sampling module, direction processing module, meter axle statistical module, speed of a motor vehicle determination module, vehicle location module five parts.
Shown in Fig. 1 c; detect interface for current mode between control substation and the wheel counting apparatus; this interface has been taked the current limliting treatment measures; maximum output current is 20mA; the two-wire system wheel counting apparatus detect the loop no vehicle by the time electric current be 5-8mA; as vehicle by the time be high impedance status, electric current＜2mA is by adjusting the demarcation that R3, R5 can realize detection sensitivity and overcurrent protection value.
The track axle count device 3 of check point position adopts the gradual filtering technique design of electromagnetism, as shown in Figure 2, when stopping above it, the iron body still can produce the pulse of an agreement width, control substation 2 carries out interpretation simultaneously to left and right sides detected object and detects on the detection sequential, after the axle-counting signal rising edge arrived, the signal sampling program was repeatedly sampled through correction process in the time in intrinsic pulsewidth.When the control substation is counted the axle sampling, agreement level 1 is for having axle, level 0 for there not being axle, processor with cycle of 5ms to the wheel counting apparatus impulse sampling, the intrinsic pulse width parameter of setting wheel counting apparatus 3 is N, pulsewidth is N*5ms, respectively 1 level and 0 level is counted, and has only and ought count N 1 just effective at last axle-counting signal continuously, layshaft useful signal sign continues the counting that progressively increases afterwards.If 0 signal occurs when counting 1 signal, then 1 counter is put N (if former count value is more than or equal to N) or be changed to 0 (if former count value is less than N), when counting M 0 signal continuously, removes by 0 counter 1 counter.
As shown in Figure 3, when wheel process meter repacking measuring point, the certain distance owing to when left and right sides wheel counting apparatus is installed, staggered, control divides and to stand in when counting a sample direction and handling, obtain a useful signal thus mistiming order is successively arranged, determine direction according to time relationships current and previous two axis signals, reject technically because of leaking the fail to judge direction counts of direction of axle, to judge direction be upstream or downstream carry out time counting number respectively, carry out secondary according to the count results of up direction and down direction then and judge, determine up-downlink direction.Owing to may run into first leakage axle or middle velocity variations suddenly in the actual motion, need technically these abnormal conditions to be rejected to select, detailed method is discussed below:
First axle leaks axle and the speed of a motor vehicle is suddenlyd change to the influence of testing result in order to reject, adopted the method that pair is associated and judges in conjunction with the vehicle front and back wheel in this algorithm with left and right sides wheel counting apparatus, because of have between the Ta1 that whenever is close to and the Ta2 definite relation a: Ta1＜＜Ta2.If direction conversely, then relation is also opposite, that is:
Up A:Ta1＜＜Ta2, descending B:Ta1＞＞Ta2
The foundation of meter direction of principal axis diagnostic method that Here it is.
Each axle, just can determine direction according to the time relationship Ta1 and the Ta2 of it and preceding two axles, then to judge direction be upstream or downstream carry out time counting number respectively, at last according to the counting of up direction and down direction which greatly with the decision direction of traffic.
The specific implementation method is as follows:
A), direction counting:
Ta1≤2Ta2:DA adds 1, and DT adds 1
Ta2≤2Ta1:DB adds 1, and DT adds 1
Other: DT adds 1
B), last direction determines
DT ≠ 0 and DA/DT 〉=60% and DB/DT≤15% direction is A
DT ≠ 0 and DB/DT 〉=60% and DA/DT≤15% direction is B
DT=0 or other direction are not clear
Wherein, DA is direction A counting, and DB is direction B counting, and DT is total time counting number of differentiating.
As shown in Figure 4,, be respectively left wheel counting apparatus and right wheel counting apparatus and set up two counters respectively, be used to add up the quantity of meter axle separately, be called A axle counter CA and B axle counter CB according to the sampled result of signal sampling module; According to the result of signal sampling processing module, the effective meter Spindle Status that whenever detects a left wheel counting apparatus just adds 1 with CA, and the effective meter Spindle Status that whenever detects a right wheel counting apparatus just adds 1 with CB; If first of a car effectively counted Spindle Status, initialization axle-counting signal sampling work buffer zone then, not leaking axle handles, if double processing is effective meter Spindle Status of the same side, think that then the wheel counting apparatus axle of opposite side has leaked once, leak axle number for the respective shaft counter adds 1, the result of meter axle statistical module comprises: the left side meter number of axle, the right meter number of axle, a left side are leaked the number of axle, are rightly leaked the number of axle, first leak spool number.
As shown in Figure 5, the definition of axle-counting signal sampling work buffer zone thes contents are as follows:
The Flag-mark
CA-A counts the number of axle
CB-B counts the number of axle
T0H-time counter high byte
T0L-time counter low byte
Mistiming high byte between the T1H-front axle
Mistiming low byte between the T1L-front axle
TV-current vehicle speed characterization value
DA-direction A counting
DB-direction B counting
DT-total degree counter
MA-A leaks axial organ
MB-B leaks axial organ
MN-is first to leak axle number
According to the left and right sides mistiming Ta1 and the Ta2 of every pair of meter axle, and direction and mounting distance, can calculate the speed characterization value that every pair of wheel shaft passes through, by the continuous average of speed characterization value is handled, obtain the instantaneous velocity of vehicle by this check point.
By wheel counting apparatus haulage track is divided into several detector segments on the track transport circuit, when vehicle passed through wheel counting apparatus, preceding two wheel shafts were by just thinking that vehicle has entered section, and last wheel shaft just thinks that by back 2s vehicle has left section; The output of vehicle location module is divided the interval boundary with strictness of driving, is one of open important evidence of teleseme.
Claims (9)
1, adopts the mine locomotive running state detection device of track axle count device, it is characterized in that: form by computing machine, communicator, control substation, track axle count device and teleseme, the signal output part of described track axle count device is connected with control substation signal input part, the signal input part of teleseme is connected with control substation signal output part, the control substation is connected by communication bus with described communicator, and communicator is connected with computing machine both-end connection.
2, the mine locomotive running state detection device of employing track axle count device according to claim 1 is characterized in that: be two-wire system current mode interface circuit between control substation and the track axle count device.
3, the mine locomotive running state detection device of employing track axle count device according to claim 1, it is characterized in that: on the mine locomotive track, each check point is installed a pair of wheel counting apparatus and is respectively left wheel counting apparatus and right wheel counting apparatus, about two wheel counting apparatus be installed in respectively on two rails, interval one determining deviation, wheel counting apparatus sensitive surface and rail level keep suitable spacing; When having vehicle to pass through on the track, whenever pass through the axletree of a wheel, the left wheel counting apparatus of control substation detects interface circuit and right wheel counting apparatus detects interface circuit generation current pulse signal sequence, current pulse signal width and wheel pass through velocity correlation, the control substation is by the sampling processing to left wheel counting apparatus sequences of pulsed signals and right meter axle sequences of pulsed signals, realization is to direction of traffic, speed, the judgement of the number of axle, result of determination reports computing machine, and computing machine is according to the installation site of wheel counting apparatus and the direction of traffic that reports, speed, number of axle information is determined the position of rail vehicle.
4, the detection method of pick-up unit according to claim 1 is characterized in that: the control substation is made up of signal sampling processing module, direction processing module, meter axle statistical module, speed of a motor vehicle determination module, vehicle location module.
5, the detection method of pick-up unit according to claim 4, it is characterized in that: described signal sampling processing module, its disposal route is: the control substation is the cycle sequences of pulsed signals that wheel counting apparatus detects interface to be sampled with 5ms, and sampling obtains two kinds of possible signals: logical one signal and logic zero signal; Two counters are set respectively: 1 counter and 0 counter, 1 counter is counted 1 signal, and 0 counter is counted 0 signal, and Spindle Status is effectively counted in one of output when 1 counter is counted N 1 signal continuously; If 0 signal occurs when counting 1 signal, then 1 counter is put N, if former count value more than or equal to N, or is changed to 0, if former count value less than N, is removed 1 counter when 0 counter is counted M 0 signal continuously.
6, the detection method of pick-up unit according to claim 4, it is characterized in that: described direction processing module, its disposal route is: when wheel through out-of-date, because left wheel counting apparatus and right wheel counting apparatus installation site be 200mm at interval, there is mistiming order successively in effective axle-counting signal that left side wheel counting apparatus and right wheel counting apparatus provide, and Ta1, Ta2 are the interval time of the wheel shaft of adjacent wheel by left wheel counting apparatus and right wheel counting apparatus; If Ta1＜＜Ta2, think that then the adjacent wheel that passes through is a up direction, otherwise be down direction; Whenever pass through the axletree of a wheel, just can determine direction according to the time relationship Ta1 and the Ta2 of it and preceding two axles, then the number of times of the uplink and downlink direction judged is counted respectively, at last according to the direction of traffic of the count value final decision permutation car of up direction and down direction;
The specific implementation method is as follows:
A), axial direction counting:
Ta1≤2Ta2:DA adds 1, and DT adds 1
Ta2≤2Ta1:DB adds 1, and DT adds 1
Other: DT adds 1
B), direction of traffic is determined
DT ≠ 0 and DA/DT 〉=60% and DB/DT≤15% direction is A
DT ≠ 0 and DB/DT 〉=60% and DA/DT≤15% direction is B
DT=0 or other direction are not clear
DA is the up direction counter, and DB is the down direction counter, and DT is the total differentiation time counter of axial direction.
7, the detection method of pick-up unit according to claim 4, it is characterized in that: described meter axle statistical module, its statistical method is: be respectively left wheel counting apparatus and right wheel counting apparatus and set up two counters respectively, be used to add up the quantity of meter axle separately, be called A axle counter CA and B axle counter CB; According to the result of signal sampling processing module, the effective meter Spindle Status that whenever detects a left wheel counting apparatus just adds 1 with CA, and the effective meter Spindle Status that whenever detects a right wheel counting apparatus just adds 1 with CB; If first of a car effectively counted Spindle Status, initial work buffer zone then, not leaking axle handles, if double processing is effective meter Spindle Status of the same side, think that then the wheel counting apparatus axle of opposite side has leaked once, leak axle number for the respective shaft counter adds 1, the result of meter axle statistical module comprises: the left side meter number of axle, the right meter number of axle, a left side are leaked the number of axle, are rightly leaked the number of axle, first leak spool number.
8, the detection method of pick-up unit according to claim 4, it is characterized in that: described speed of a motor vehicle determination module, its decision method is: according to the left and right sides mistiming Ta1 and the Ta2 of every pair of meter axle, and direction and mounting distance, can calculate the speed characterization value that every pair of wheel shaft passes through, by the continuous average of speed characterization value is handled, obtain the instantaneous velocity of vehicle by this check point.
9, the detection method of pick-up unit according to claim 4, it is characterized in that: described vehicle location module, its method is: by wheel counting apparatus haulage track is divided into several detector segments on the track transport circuit, when vehicle passes through wheel counting apparatus, preceding two wheel shafts are by just thinking that vehicle has entered section, and last wheel shaft just thinks that by back 2s vehicle has left section.
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| CN2009101444653A CN101644929B (en) | 2009-08-10 | 2009-08-10 | Mine locomotive running state detection method adopting railway vehicle axle counter |
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| CN2009101444653A CN101644929B (en) | 2009-08-10 | 2009-08-10 | Mine locomotive running state detection method adopting railway vehicle axle counter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118427A (en) * | 2010-12-15 | 2011-07-06 | 合肥工业大学 | Mine locomotive monitoring system under multilayer heterogeneous industrial control network convergence technology |
| CN102514597A (en) * | 2011-12-12 | 2012-06-27 | 北京交控科技有限公司 | Method for monitoring track state based on zone control system in CBTC (communication based train control) system |
| CN102849087A (en) * | 2012-07-29 | 2013-01-02 | 合肥工大高科信息科技股份有限公司 | Vehicle-passing refuse operation control device for mine track haulage turnout and control method thereof |
| CN104181432B (en) * | 2014-09-10 | 2017-03-08 | 上海自仪泰雷兹交通自动化***有限公司 | A kind of two from three trackside second-line maintenance and test platform |
| CN110386169A (en) * | 2019-08-06 | 2019-10-29 | 海能达通信股份有限公司 | Driving direction determines method, apparatus and system |
| CN113071534A (en) * | 2021-04-21 | 2021-07-06 | 湖北恒子工程技术有限公司 | Vector railway wheel axle counter |
| CN114715224A (en) * | 2022-04-02 | 2022-07-08 | 广东电网有限责任公司惠州供电局 | Intelligent monitoring system and monitoring method for rail transportation |
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2009
- 2009-08-10 CN CN2009101444653A patent/CN101644929B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118427A (en) * | 2010-12-15 | 2011-07-06 | 合肥工业大学 | Mine locomotive monitoring system under multilayer heterogeneous industrial control network convergence technology |
| CN102514597A (en) * | 2011-12-12 | 2012-06-27 | 北京交控科技有限公司 | Method for monitoring track state based on zone control system in CBTC (communication based train control) system |
| CN102849087A (en) * | 2012-07-29 | 2013-01-02 | 合肥工大高科信息科技股份有限公司 | Vehicle-passing refuse operation control device for mine track haulage turnout and control method thereof |
| CN102849087B (en) * | 2012-07-29 | 2015-04-22 | 合肥工大高科信息科技股份有限公司 | Vehicle-passing refuse operation control device for mine track haulage turnout and control method thereof |
| CN104181432B (en) * | 2014-09-10 | 2017-03-08 | 上海自仪泰雷兹交通自动化***有限公司 | A kind of two from three trackside second-line maintenance and test platform |
| CN110386169A (en) * | 2019-08-06 | 2019-10-29 | 海能达通信股份有限公司 | Driving direction determines method, apparatus and system |
| CN113071534A (en) * | 2021-04-21 | 2021-07-06 | 湖北恒子工程技术有限公司 | Vector railway wheel axle counter |
| CN114715224A (en) * | 2022-04-02 | 2022-07-08 | 广东电网有限责任公司惠州供电局 | Intelligent monitoring system and monitoring method for rail transportation |
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Owner name: HFUT HIGH-TECH. INFORMATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HEFEI GONGDA GAOKE INFORMATION TECHNOLOGY CO., LTD. |
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Address after: High tech Zone Hefei city Anhui province 230088 Tianzhi Road No. 27 Patentee after: Hefei GOCOM Information & Technology Co., Ltd. Address before: High tech Zone Hefei city Anhui province 230088 Tianzhi Road No. 27 Patentee before: Hefei Gongda Gaoke Information Technology Co., Ltd. |