CN202275120U - ETC fault monitoring device - Google Patents
ETC fault monitoring device Download PDFInfo
- Publication number
- CN202275120U CN202275120U CN2011203062942U CN201120306294U CN202275120U CN 202275120 U CN202275120 U CN 202275120U CN 2011203062942 U CN2011203062942 U CN 2011203062942U CN 201120306294 U CN201120306294 U CN 201120306294U CN 202275120 U CN202275120 U CN 202275120U
- Authority
- CN
- China
- Prior art keywords
- module
- demodulation
- microwave signal
- signal
- processing module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model provides an ETC fault monitoring device. The ETC fault monitoring device comprises an antenna reception module and a processing module. The antenna reception module is used for receiving microwave signals emitted by a vehicle-loaded unit OBU and\or a road side unit RSU and forwarding the signals to the processing module. The processing module is connected with the antenna reception module and is used for determining abnormity of the OBU and\or the RSU of an ETC based on the microwave signals forwarded by the antenna reception module. According to the above ETC fault monitoring device, if the abnormity occurs to the ETC, the microwave signals emitted by the OBU and the RSU can be analyzed and processed so that fault causes are rapidly and accurately positioned.
Description
Technical field
The utility model relates to intelligent transportation field,, in particular to a kind of ETC (Electronic Toll Collection no-stop charging system) malfunction monitoring equipment.
Background technology
Intelligent transportation system (Intelligent Transport System; Be called for short ITS) be the forward position research topic of present world traffic and transport field; It also is the emphasis direction of China's Progress in Transport Science and Technologies; Its core is to serious day by day transport need and environmental protection pressure; Adopt infotech, electronic communication technology, automatic control technology, computer technology and network technology etc. that conventional traffic transportation system is carried out deep transformation,, reduce the consumption and the environmental pollution of resource to improve service efficiency, the security of system of system resource.ETC is an importance in the ITS field.Through being installed in board units (the On Board Unit on the automobile; Abbreviate OBU as) (be electronic tag; Store the bulk information relevant, like vehicle model, vehicle number, car owner's interrelated data etc. with vehicle) the other roadside unit (Roadside Unit abbreviates RSU as) with being installed in the lane in which the drivers should pay fees; Carry out the fast data exchange with the mode of microwave; System calculates by corresponding standard and takes volume, settles accounts through the bank and the stored value card of advance payment in advance of networking, realizes the non-parking charge of vehicle.
At present, ETC is not sure of fault type in the operation and maintenance process, promptly is difficult to fault location reason (failure cause that is for example caused by the aerial signal factor), is not sure of OBU fault or RSU fault, makes troubles for user's operation and maintenance.
To the problems referred to above in the correlation technique, effective solution is not proposed as yet at present.
The utility model content
The fundamental purpose of the utility model is to provide a kind of ETC malfunction monitoring equipment, one of to address the above problem at least.
According to an aspect of the utility model, a kind of ETC malfunction monitoring equipment is provided, comprising: the antenna receiver module is used to receive the microwave signal that board units (OBU) and/or roadside unit (RSU) send and is transmitted to processing module; Processing module links to each other with the antenna receiver module, is used for confirming that according to the microwave signal that the antenna receiver module forwards the OBU of E-payment system ETC and/or RSU are unusual.
Pass through the utility model; Employing is monitored the microwave signal that OBU and/or RSU send; Thereby confirm the technological means of ETC fault type, solved in the correlation technique, be not sure of ETC fault or Exception Type; Promptly be difficult to the technical matters of fault location reason, and then reached the effect that effectively to locate the ETC failure cause.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the structured flowchart according to the ETC malfunction monitoring equipment of the utility model embodiment 1;
Fig. 2 is the structural representation according to the ETC malfunction monitoring equipment of the utility model embodiment 1;
Fig. 3 is the composition frame chart according to the antenna receiver module of the utility model embodiment 1;
Fig. 4 is the composition frame chart according to the ETC malfunction monitoring equipment of the utility model embodiment 2;
Fig. 5 is the composition structural representation according to the antenna receiver module of the utility model embodiment 2;
Fig. 6 is the structural representations of two kinds of bandwidth filters according to the utility model embodiment 2 when switching;
Fig. 7 is the structural representations of two kinds of demodulation modes according to the utility model embodiment 2 when switching.
Embodiment
Hereinafter will and combine embodiment to specify the utility model with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Embodiment 1
Fig. 1 is the structured flowchart according to the ETC malfunction monitoring equipment of the utility model embodiment.As shown in Figure 1, this equipment comprises: antenna receiver module 10 is used to receive the microwave signal that board units OBU and/or roadside unit RSU send and is transmitted to processing module 12; Processing module 12 links to each other with antenna receiver module 10, is used for confirming that according to the microwave signal that antenna receiver module 10 forwards the OBU of ETC and/or RSU are unusual.When concrete the application, the connected mode of above-mentioned processing module 12 and antenna receiver module 10 can also can or be of coupled connections etc. for wireless connections for wired connection.
When the ETC system broke down cisco unity malfunction, the problem that can't know roadside unit RSU still was the technical matters of problem of certain board units OBU.At this moment; Utilize ETC malfunction monitoring equipment that the data of eating dishes without rice or wine are monitored and resolved,, or carry out dissection process to the received signal if ETC malfunction monitoring equipment does not receive the data of RSU (or OBU); When the data of receiving wrong, can failure judgement former because RSU (or OBU).
Before the microwave signal that processing module 12 receiving antenna receiver modules 10 are transmitted, can effectively discern above-mentioned microwave signal in order to make processing module, need earlier above-mentioned microwave signal to be carried out demodulation; Therefore, also need a hardware module that realizes demodulation function, particularly; As shown in Figure 2; The said equipment can also comprise: demodulation module 14, link to each other with antenna receiver module 10, and be used for microwave signal is carried out demodulation and is transmitted to processing module 12.
As shown in Figure 2; Above-mentioned demodulation module 14 can comprise: comparer demodulation module 140; Be used for adopting the comparer demodulation mode to carry out demodulation to microwave signal; Comparer demodulation module 140 can realize that sensitivity is lower by integrated comparer in radio frequency chip or the DSRC chip, is fit to closely use.
In order to be fit to remote applied scene; As shown in Figure 2; Above-mentioned demodulation module 14 can also comprise: first switch 142; Link to each other with section's Stas (COSTAS) ring demodulation module 144 with comparer demodulation module 140, be used for comparer demodulation module 140 and COSTAS ring demodulation module 144 are carried out gating.Above-mentioned COSTAS ring demodulation module 144 is used for adopting COSTAS ring demodulation mode to carry out demodulation to microwave signal.
In order to guarantee the quality of reception of 12 pairs of microwave signals of processing module; Can, microwave signal carry out filtering to microwave signal, particularly before arriving processing module 12; As shown in Figure 2; The said equipment can also comprise: filtration module 16, be connected between antenna receiver module 10 and the demodulation module 14, and be used for microwave signal is carried out filtering and sent filtered signal to demodulation module 14.
Because the skew of the OBU frequency of each producer is different; The frequency skew that has is less, and the frequency skew that has is bigger, for the less OBU of frequency skew; Can adopt the nonadjustable filtration module of bandwidth; For the bigger OBU of frequency skew, can adopt the adjustable filtration module of bandwidth, so that receive microwave signal effectively.Particularly, as shown in Figure 2, above-mentioned filtration module 16 can comprise: second switch 164 is used for the bandwidth nonadjustable first sub-filtration module 160 is carried out gating with the second adjustable sub-filtration module 162 of bandwidth; Wherein, the above-mentioned first sub-filtration module 160 links to each other with second switch 164, is used for carrying out filtering less than the microwave signal of preset frequency skew threshold values; The above-mentioned second sub-filtration module 162 links to each other with second switch 164, is used for carrying out filtering greater than the microwave signal of preset frequency skew threshold values.Above-mentioned second switch can be arranged on before two sub-filtration modules, also can be arranged on after two sub-filtration modules.
For the ease of understanding above-mentioned filtering mode, existing with the instantiation explanation.Above-mentioned in this example ETC malfunction monitoring equipment can receive the signal of 5.79GHz, 5.80GHz, 5.83GHz, four frequencies of 5.84GHz simultaneously, and the reception bandwidth of each frequency can be regulated.Usually the intermediate frequency SAW filter of selecting for use (being equivalent to the first sub-filtration module 160) bandwidth is 5MHz; The OBU of the producer frequency skew that when reality is used, has is bigger; Use SAW filter can not effectively receive data; Another wave filter of this instance (being equivalent to the second sub-filtration module 162), bandwidth can effectively be evaded this problem at 10MHz.The switching of two kinds of wave filters can be adopted toggle switch (being equivalent to second switch 164) mode.
The above-mentioned second sub-filtration module 162 can be the LC analog filter.
As shown in Figure 2, above-mentioned processing module 12 comprises: the microwave signal that baseband signal processing module 120, the microwave signal that is used for that antenna receiver module 10 is forwarded will carry out after base band signal process also will be handled is transmitted to microprocessor module; Microprocessor module 122; Link to each other with baseband signal processing module 120; Be used for confirming that according to the microwave signal after the base band signal process of carrying out that baseband signal processing module 120 forwards the OBU of ETC and/or RSU are unusual, and generation and OBU and/or the corresponding abnormal signal of RSU; Acousto-optic indicating module 124 links to each other with microprocessor module 122, and the abnormal signal that is used for sending over according to microprocessor module 122 carries out and the corresponding sound and light alarm of abnormal signal.Particularly; When abnormal signal indication OBU fault and/or RSU fault; Acousto-optic indicating module 124 can demonstration and OBU and/or corresponding different light emitting source of RSU and/or the alternative sounds that is used to indicate OBU or RSU; Wherein, above-mentioned light emitting source can be distinguished fault (unusually) type through showing different colours, but is not limited to this.
In embodiment, as shown in Figure 3, above-mentioned antenna receiver module 10 can include but not limited to following hardware module: external antenna 100 is used to receive the microwave signal of OBU and/or RSU; Low noise amplifier (LNA) 102 links to each other with said external antenna 100, and the microwave signal that is used for external antenna is received is carried out filter amplifying processing; Power splitter 104 links to each other with LNA 102, is transmitted to processing module after the microwave signal after being used for LNA handled is divided into the predetermined number road.In the specific implementation, the quantity of above-mentioned each hardware module (external antenna, low noise amplifier, power splitter) can be according to the actual conditions setting.Particularly, can be referring to embodiment illustrated in fig. 5, but be not limited to this.
In order to make the user can check failure cause or Exception Type on computers; As shown in Figure 2, the said equipment can also comprise: the interface module 20 that links to each other with processing module 12 is used for and is connected computing machine; This interface module can be USB interface, serial ports, RS232 interface etc.
In the present embodiment, above-mentioned microwave signal can be the 40MHz intermediate-freuqncy signal.
Embodiment 2
Present embodiment provides a kind of ETC audiomonitor (being ETC malfunction monitoring equipment); As shown in Figure 4, comprise antenna receiver module 10, radio-frequency module 40 (being equivalent to demodulation module 14 and filtration module 16), baseband signal processing module 120, microprocessor module 122, acousto-optic indicating module 124, interface module 20 and power module.Antenna receiver module 10 links to each other with radio-frequency module 40; Said radio-frequency module 40 links to each other with said baseband signal processing module 120; Said baseband signal processing module 120 links to each other with said microprocessor module 122, and said microprocessor module 122 also links to each other with interface module 20 with said acousto-optic indicating module 124 simultaneously.Wherein, The function that processing module 12 among the embodiment 1 realizes; Can realize by baseband signal processing module 120, microprocessor module 122 and acousto-optic indicating module 124, but the function that baseband signal processing module 120, microprocessor module 122 and acousto-optic indicating module 124 are realized is not limited to the function that processing module 12 realizes.That is to say that the processing module among the embodiment 1 can comprise: baseband signal processing module 120, microprocessor module 122 and acousto-optic indicating module 124.
As shown in Figure 5, antenna receiver module 10 comprises two external omnidirectional antennas 100, two LNA LNA (Low Noise Amplifier) LNA 102, two power splitters 104.Two antennas are used for receiving the microwave signal that RSU or OBU send; Two LNA LNA 102 are used for respectively the microwave signal that antenna receives is carried out filter amplifying processing; Each power splitter 104 all is divided into two-way with one road signal to be given radio-frequency module 40 and handles, and produces signal 1, signal 2, signal 3, signal 4 respectively.
As shown in Figure 6; Radio-frequency module 40 mainly is made up of 4 DSRC chips 400 and peripheral circuit; 4 chips link to each other with 4 tunnel radiofrequency signals that two power splitters are divided into respectively and are operated in 5.79GHz, 5.80GHz, 5.83GHz, 4 frequencies of 5.84GHz respectively, are used for the radiofrequency signal of these 4 frequencies is carried out LNA, mixing, demodulation processing such as (only limiting to the comparer demodulation mode).Radio-frequency module 40 can also be regulated filter bandwidht according to the receiving signal frequency offset situation.This equipment adopts the superheterodyne reception mode, produces the intermediate-freuqncy signal of a 40MHz after aerial signal entering radio-frequency module 40 process LNAs, the Frequency mixing processing, for guaranteeing received signal quality, needs a wave filter this signal is carried out Filtering Processing.This equipment has adopted two kinds of wave filters, and a kind of is the first sub-filtration module 160, and this filtration module can be integrated SAW filter; Bandwidth is 5MHz; Another kind is the second sub-filtration module 162, and this filtration module can be the LC analog filter for the wave filter that analog device is taken, and bandwidth is 10MHz.When the received signals frequency deviation hour, adopting the first sub-filtration module 160 is SAW filter, when the received signals frequency deviation is big, adopts the second sub-filtration module 162 analog device wave filters.Switching mode realizes that through second switch 164 this switch can be toggle switch.
Be the reception under the strong and weak two kinds of situation of simultaneous adaptation signal; Present embodiment has designed two kinds of demodulation modes, and is as shown in Figure 7, the COSTAS ring demodulation mode of the comparer demodulation mode of comparer demodulation module 140 and COSTAS ring demodulation module 144; The former receiving sensitivity is lower; Be fit to closely use, latter's receiving sensitivity is higher, is fit to remote the use.The switching of two kinds of working methods realizes that through first switch 142 this switch can be toggle switch.DSRC chip 400 is directly exported the baseband signal after the demodulation when using the comparer demodulation mode; When using COSTAS ring demodulation mode; Entering baseband signal processing module 120 after the corresponding envelope emulates signal of special-purpose short distance chip 400 outputs, this signal carry out digitizing through high-speed A/D converter (this converter can in baseband signal processing module 120 inside).
Baseband signal processing module 120 mainly is made up of resourceful fpga chip, is used for the restituted signal of received RF module 40 outputs, and this signal is carried out FM0 decoding, HDLC parsing, then with reporting microprocessor module 120 after data framing again.
The sound indicating section of acousto-optic indicating module 124 is made up of hummer and driving circuit; Indicate the duty and the command operation result of audiomonitor equipment with the mode of sound; The light indicating section is made up of the pilot lamp of different colours, is used for indicating the duty and the command operation result of audiomonitor equipment;
Power module is made up of high-precision power supply chip and peripheral circuit, is used for comprising 3.3V, 1.6V, many kinds of power supplys of 1.2V to each circuit module power supply.
When the ETC system broke down cisco unity malfunction, the problem that can't know roadside unit RSU still was the problem of certain board units OBU.At this moment utilize audiomonitor equipment that the data of eating dishes without rice or wine are monitored and resolved, if it is audiomonitor equipment can not receive the data of RSU (or OBU), or the error in data of receiving, can failure judgement former because RSU (or OBU).
Obviously, it is apparent to those skilled in the art that each module of above-mentioned the utility model or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the memory storage and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the utility model is not restricted to any specific hardware and software combination.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. an ETC malfunction monitoring equipment is characterized in that, comprising:
The antenna receiver module is used to receive the microwave signal that board units OBU and/or roadside unit RSU send and is transmitted to processing module;
Said processing module links to each other with said antenna receiver module, is used for confirming that according to the microwave signal that said antenna receiver module forwards the OBU of E-payment system ETC and/or RSU are unusual.
2. equipment according to claim 1 is characterized in that, also comprises:
Demodulation module links to each other with said antenna receiver module, is used for the microwave signal that said antenna receiver module receives is carried out demodulation and is transmitted to said processing module.
3. equipment according to claim 2 is characterized in that, said demodulation module comprises:
The comparer demodulation module is used for adopting the comparer demodulation mode to carry out demodulation to said microwave signal.
4. equipment according to claim 3 is characterized in that, said demodulation module also comprises:
First switch links to each other with the Stas COSTAS of section ring demodulation module with said comparer demodulation module, is used for said comparer demodulation module and said COSTAS ring demodulation module are carried out gating;
Said COSTAS ring demodulation module is used for adopting COSTAS ring demodulation mode to carry out demodulation to said microwave signal.
5. equipment according to claim 2 is characterized in that, also comprises:
Filtration module is connected between said antenna receiver module and the said demodulation module, is used for said microwave signal is carried out filtering and sent filtered signal to said demodulation module.
6. equipment according to claim 5 is characterized in that, said filtration module comprises:
Second switch is used for bandwidth nonadjustable first sub-filtration module and the second adjustable sub-filtration module of bandwidth are carried out gating;
The said first sub-filtration module links to each other with said second switch, is used for carrying out filtering less than the microwave signal of preset frequency skew threshold values;
The said second sub-filtration module links to each other with said second switch, is used for carrying out filtering greater than the microwave signal of said preset frequency skew threshold values.
7. equipment according to claim 6 is characterized in that, the said second sub-filtration module is the LC analog filter.
8. according to each described equipment of claim 1 to 7, it is characterized in that said antenna receiver module comprises:
External antenna is used to receive the microwave signal of said OBU and/or said RSU;
Low noise amplifier LNA links to each other with said external antenna, and the microwave signal that is used for said external antenna is received is carried out filter amplifying processing;
Power splitter links to each other with said LNA, is transmitted to said processing module after the microwave signal after being used for said LNA handled is divided into the predetermined number road.
9. according to each described equipment of claim 1 to 7, it is characterized in that said processing module comprises:
Baseband signal processing module is used for the microwave signal that the microwave signal that said antenna receiver module forwards will be carried out after base band signal process also will be handled is transmitted to microprocessor module;
Said microprocessor module; Link to each other with said baseband signal processing module; Be used for confirming that according to the microwave signal after the base band signal process of carrying out that said baseband signal processing module forwards the said OBU of said ETC and/or said RSU are unusual, and generation and said OBU and/or the corresponding abnormal signal of said RSU;
The acousto-optic indicating module links to each other with said microprocessor module, is used for carrying out reporting to the police with corresponding sound of said abnormal signal and/or light according to the said abnormal signal that said microprocessor module sends over.
10. according to each described equipment of claim 1 to 7, it is characterized in that, also comprise:
With the interface module that said processing module links to each other, be used to connect display device, the Exception Type of the ETC that said processing module is definite sends said display device to and shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203062942U CN202275120U (en) | 2011-08-22 | 2011-08-22 | ETC fault monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203062942U CN202275120U (en) | 2011-08-22 | 2011-08-22 | ETC fault monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275120U true CN202275120U (en) | 2012-06-13 |
Family
ID=46195468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203062942U Expired - Lifetime CN202275120U (en) | 2011-08-22 | 2011-08-22 | ETC fault monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202275120U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778672A (en) * | 2013-04-15 | 2014-05-07 | 深圳市金溢科技有限公司 | Communication performance test method and general-purpose tester |
| CN103778668A (en) * | 2013-03-05 | 2014-05-07 | 深圳市金溢科技有限公司 | Driveway transaction abnormity processing method and system |
| CN103871113A (en) * | 2012-12-14 | 2014-06-18 | 深圳市金溢科技有限公司 | Method and system for monitoring traffic information |
| CN108738056A (en) * | 2018-05-22 | 2018-11-02 | 北京汽车集团有限公司 | Monitoring method, the device and system of roadside unit |
| CN110427010A (en) * | 2019-05-27 | 2019-11-08 | 苏州思卡信息系统有限公司 | A kind of vehicle-mounted OBU unusual condition warning system and method |
| CN111158943A (en) * | 2019-12-20 | 2020-05-15 | 航天信息股份有限公司 | Fault diagnosis method and apparatus, storage medium, electronic device |
| CN111741489A (en) * | 2020-06-09 | 2020-10-02 | 福耀玻璃工业集团股份有限公司 | OBU fault detection method, OBU device and OBU fault detection system |
| CN112132985A (en) * | 2020-09-08 | 2020-12-25 | 北京中交国通智能交通系统技术有限公司 | Active data acquisition device of electronic toll collection equipment |
| CN112165339A (en) * | 2020-09-30 | 2021-01-01 | 广州市埃特斯通讯设备有限公司 | OBU positioning system of RSU based on direct frequency conversion |
| CN112838843A (en) * | 2020-12-30 | 2021-05-25 | 北京千方科技股份有限公司 | Signal conditioning device and signal conditioning method |
| CN113960394A (en) * | 2021-10-15 | 2022-01-21 | 北京聚利科技有限公司 | Detection method and device for vehicle-mounted unit, detection equipment and readable storage medium |
| CN114120636A (en) * | 2021-11-05 | 2022-03-01 | 湖南湘江智能科技创新中心有限公司 | Monitoring equipment of roadside equipment information based on C-V2X |
| CN114362844A (en) * | 2021-12-29 | 2022-04-15 | 北京万集科技股份有限公司 | Antenna device, method for diagnosing a malfunction of an on-board unit and related product |
| CN113960394B (en) * | 2021-10-15 | 2024-05-14 | 北京聚利科技有限公司 | Detection method and device for vehicle-mounted unit, detection equipment and readable storage medium |
-
2011
- 2011-08-22 CN CN2011203062942U patent/CN202275120U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871113A (en) * | 2012-12-14 | 2014-06-18 | 深圳市金溢科技有限公司 | Method and system for monitoring traffic information |
| CN103778668A (en) * | 2013-03-05 | 2014-05-07 | 深圳市金溢科技有限公司 | Driveway transaction abnormity processing method and system |
| CN103778672A (en) * | 2013-04-15 | 2014-05-07 | 深圳市金溢科技有限公司 | Communication performance test method and general-purpose tester |
| CN108738056B (en) * | 2018-05-22 | 2021-10-01 | 北京汽车集团有限公司 | Monitoring method, device and system for roadside unit |
| CN108738056A (en) * | 2018-05-22 | 2018-11-02 | 北京汽车集团有限公司 | Monitoring method, the device and system of roadside unit |
| CN110427010A (en) * | 2019-05-27 | 2019-11-08 | 苏州思卡信息系统有限公司 | A kind of vehicle-mounted OBU unusual condition warning system and method |
| CN111158943A (en) * | 2019-12-20 | 2020-05-15 | 航天信息股份有限公司 | Fault diagnosis method and apparatus, storage medium, electronic device |
| CN111158943B (en) * | 2019-12-20 | 2024-03-22 | 航天信息股份有限公司 | Fault diagnosis method and device, storage medium and electronic equipment |
| CN111741489A (en) * | 2020-06-09 | 2020-10-02 | 福耀玻璃工业集团股份有限公司 | OBU fault detection method, OBU device and OBU fault detection system |
| CN112132985A (en) * | 2020-09-08 | 2020-12-25 | 北京中交国通智能交通系统技术有限公司 | Active data acquisition device of electronic toll collection equipment |
| CN112165339A (en) * | 2020-09-30 | 2021-01-01 | 广州市埃特斯通讯设备有限公司 | OBU positioning system of RSU based on direct frequency conversion |
| CN112838843B (en) * | 2020-12-30 | 2024-02-27 | 北京千方科技股份有限公司 | Signal conditioning device and signal conditioning method |
| CN112838843A (en) * | 2020-12-30 | 2021-05-25 | 北京千方科技股份有限公司 | Signal conditioning device and signal conditioning method |
| CN113960394A (en) * | 2021-10-15 | 2022-01-21 | 北京聚利科技有限公司 | Detection method and device for vehicle-mounted unit, detection equipment and readable storage medium |
| CN113960394B (en) * | 2021-10-15 | 2024-05-14 | 北京聚利科技有限公司 | Detection method and device for vehicle-mounted unit, detection equipment and readable storage medium |
| CN114120636A (en) * | 2021-11-05 | 2022-03-01 | 湖南湘江智能科技创新中心有限公司 | Monitoring equipment of roadside equipment information based on C-V2X |
| CN114362844A (en) * | 2021-12-29 | 2022-04-15 | 北京万集科技股份有限公司 | Antenna device, method for diagnosing a malfunction of an on-board unit and related product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202275120U (en) | ETC fault monitoring device | |
| CN102208134A (en) | Method and system for highway information service | |
| US20070241906A1 (en) | Methods and apparatus for an RFID system with multi-antenna zones | |
| CN103606281A (en) | Vehicle incoming and outgoing behavior detection method for intelligent parking lot | |
| CN104200651A (en) | Vehicle-mounted communication device and method based on DSRC and Beidou satellite | |
| CN103065449A (en) | Method and system for remote meter reading of gas meter and intelligent gas meter | |
| CN103778668A (en) | Driveway transaction abnormity processing method and system | |
| CN204215455U (en) | A kind of car-mounted device with function of path recognition | |
| CN105072583A (en) | Intelligent positioning and tracking system | |
| CN104463993A (en) | Method for solving problem of etc adjacent channel interference | |
| CN108242939A (en) | Optimize the method, apparatus and board units of board units receiving sensitivity | |
| CN207568343U (en) | A kind of lock control system of the shared vehicles | |
| CN103366576A (en) | Vehicle identification code binding system | |
| CN203386353U (en) | Remote meter reading system of gas meter | |
| CN202205219U (en) | Ground identification device for universal railway train number | |
| CN204244247U (en) | A kind of RSU calibration equipment | |
| CN212060435U (en) | Detection equipment for field intensity information | |
| CN203179102U (en) | Ambiguous path identification system | |
| CN202310123U (en) | Vehicle-mounted GPRS (General Packet Radio Service) communication device | |
| CN105405311A (en) | Positioning and broadcasting system of bus on-board device and stations based on wireless radio frequency technology | |
| CN202889369U (en) | Internet of things equipment | |
| CN206441347U (en) | Urban public transport integrated monitoring device | |
| US20100279632A1 (en) | Communication apparatus | |
| CN203217032U (en) | Line fault data collector | |
| CN203025828U (en) | Traffic station passenger flow detection system based on radio frequency identification technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160902 Address after: 300308 Tianjin Airport Economic Zone, Binhai New Area seven East Road No. 2 Zhongxing Industrial Base Patentee after: ZTE INTELLIGENT IOT TECHNOLOGY CO., LTD. Address before: 518057 Nanshan District science and technology, Guangdong Province, South Road, No. 55, No. Patentee before: ZTE Corporation |
|
| CP03 | Change of name, title or address |
Address after: Room 401, building 12, east area, airport business park, No. 80, Huanhe North Road, free trade zone (Airport Economic Zone), Binhai New Area, Tianjin 300000 Patentee after: Gaoxing Zhilian Technology Co., Ltd. Address before: 300308, Zhongxing Industrial base, 2 East seven, Airport Economic Zone, Tianjin Binhai New Area Patentee before: ZTE INTELLIGENT IOT TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |
|
| CX01 | Expiry of patent term |