CN203366536U - Vehicle time-delay detector - Google Patents
Vehicle time-delay detector Download PDFInfo
- Publication number
- CN203366536U CN203366536U CN 201320479249 CN201320479249U CN203366536U CN 203366536 U CN203366536 U CN 203366536U CN 201320479249 CN201320479249 CN 201320479249 CN 201320479249 U CN201320479249 U CN 201320479249U CN 203366536 U CN203366536 U CN 203366536U
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- signal processing
- processing module
- relay
- module
- detection
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Abstract
The utility model discloses a vehicle time-delay detector, relating to the technical field of vehicle detection. The detector is provided with a housing and a detection circuit arranged in the housing, the detection circuit includes a signal processing module for detecting and analyzing vehicle pass-by cases, a magnetic field detection module connected with the signal processing module and detecting the inductance value of a grounding induction coil, an overcurrent detection module connected with the signal processing module and protecting equipment, an LDO voltage reduction circuit connected with the signal processing module, a DC12V power supply module respectively connected with the LDO voltage reduction circuit and the overcurrent detection module, a driving relay connected with the signal processing module and directly controlling an external device, and the signal processing module is provided with a controller having the functions of automatic clearing and time delaying. The vehicle time-delay detector is advantageous in being capable of directly driving a relay to drive a load without additionally arranging an industrial control computer or a PLC.
Description
Technical field
The utility model relates to the vehicle detection technical field, and specifically a kind of vehicle time delay detecting device, be mainly used in highway ETC non-parking charge road junction, parking lot or hidden bend, to the detection of vehicular traffic, is letter
The equipment such as signal lamp, barrier machine provides signal or drives load, and application is more extensive.
Background technology
Existing wagon detector kind is more, and market price does not wait to 2000 yuan at 1200 yuan, all, with digital signal or waveform output, can't directly drive load (as: signal lamp, barrier machine, relay etc.).Need be equipped with the equipment such as industrial computer, special-purpose control panel, PLC during use, virtually increase cost, difficulty of construction is large, and common maintainer can't keep in repair.When phonetic alarm is installed additional at the ETC passage in company, can't purchase simple and practical wagon detector.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of vehicle time delay detecting device, in the situation that do not increase industrial computer or PLC, solve and directly drive relay, thus the band dynamic load.
The utility model is realized with following technical scheme: a kind of vehicle time delay detecting device comprises housing and the testing circuit that is arranged on housing; Described testing circuit comprises for detection of analyzing the signal processing module of vehicle through situation, be connected the magnetic field detection module for detection of the inductance size of institute's ground connection sense coil with signal processing module, be connected the excess current detection module for the protection of equipment with signal processing module, the LDO reduction voltage circuit be connected with signal processing module, the DC12V power module be connected with the excess current detection module with the LDO reduction voltage circuit respectively; With signal processing module, be connected for directly controlling the driving relay of external unit; Described signal processing module adopts the controller of automatic clear function and delay function.
The beneficial effects of the utility model are: 1, increase the high-power driving module, directly relay output, reduced the intermediate equipment link; 2, increase automatic clear function and delay function, avoid undetected defect and regulate the time as required, complete the function that industrial computer or PLC just can complete, reduced equipment investment, guarantee that the ETC passage installs the phonetic alarm engineering safety additional reliable.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the utility model theory diagram;
Fig. 2 drives relay circuit.
Embodiment
As shown in Figure 1, vehicle time delay detecting device has a housing and the testing circuit that is arranged on housing.Testing circuit has with lower module: signal processing module, magnetic field detection module, over-current detection module and LDO reduction voltage circuit.Signal processing module is by single-chip microcomputer, crystal oscillator, and the elements such as electric capacity form, for detection of analyzing vehicle through situation.The DC12V power supply is connected with single-chip microcomputer by the LDO reduction voltage circuit, and ground induction coil is connected with single-chip microcomputer by the magnetic field detection module.Signal processing module is by driving relay output switch amount signal, for directly controlling external unit.The magnetic field detection module, by detecting the inductance size of institute's ground connection sense coil, experience the intensity of changes of magnetic field, and then output signal to processing module.The over-current detection module, can effectively detect the power lead reversal connection, the overcurrent condition that electric short circuit etc. cause, and the circuit of cutting off the electricity supply in time, prevent from further destroying equipment.Wherein, housing adopts aluminium casing, can effectively shield external interference.
As shown in Figure 2, described signal processing module adopts single-chip microcomputer, drive relay circuit to comprise resistance R 1, inductance D1, relay LS1, triode Q1, the 5v power supply, the single-chip microcomputer output drive signal, one end of resistance R 1 is connected with single-chip microcomputer for receiving the driving signal, the other end is connected with the base stage of triode Q1, the grounded emitter of triode Q1, the current collection level of triode Q1 is connected with relay LS1 with diode D1, the end of diode D1 and the end of LS1 are connected and are connected to the 5V power supply, the pin 1 of relay LS1 and pin 3 are used for driving peripherals as output interface.
The utility model is used in to not Park Lane use of the ETC of each charge station at a high speed.When vehicle by the time, the other phonetic alarm automatic speech prompting of tollbooth, guaranteed the fee-collector, the work of keeping a public place clean and other staff pass through the current safety in road junction.Saved the input of industrial computer, special-purpose control panel or PLC equipment.This new vehicle time delay detecting device is installed very simple, practical, and expense is low, has very high economic benefit and social benefit.
Claims (3)
1. a vehicle time delay detecting device, comprise housing and the testing circuit that is arranged on housing; It is characterized in that: described testing circuit comprises for detection of analyzing the signal processing module of vehicle through situation, be connected the magnetic field detection module for detection of the inductance size of institute's ground connection sense coil with signal processing module, be connected the excess current detection module for the protection of equipment with signal processing module, the LDO reduction voltage circuit be connected with signal processing module, the DC12V power module be connected with the excess current detection module with the LDO reduction voltage circuit respectively; With signal processing module, be connected for directly controlling the driving relay of external unit; Described signal processing module adopts the controller of automatic clear function and delay function.
2. vehicle time delay detecting device according to claim 1, it is characterized in that: described signal processing module adopts single-chip microcomputer, drive relay circuit to comprise resistance R 1, inductance D1, relay LS1, triode Q1, the 5v power supply, the single-chip microcomputer output drive signal, one end of resistance R 1 is connected with single-chip microcomputer for receiving the driving signal, the other end is connected with the base stage of triode Q1, the grounded emitter of triode Q1, the current collection level of triode Q1 is connected with relay LS1 with diode D1, the end of diode D1 and the end of LS1 are connected and are connected to the 5V power supply, the pin 1 of relay LS1 and pin 3 are used for driving peripherals as output interface.
3. vehicle time delay detecting device according to claim 1 and 2, is characterized in that: described housing employing aluminium casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320479249 CN203366536U (en) | 2013-08-06 | 2013-08-06 | Vehicle time-delay detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320479249 CN203366536U (en) | 2013-08-06 | 2013-08-06 | Vehicle time-delay detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203366536U true CN203366536U (en) | 2013-12-25 |
Family
ID=49814269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320479249 Expired - Lifetime CN203366536U (en) | 2013-08-06 | 2013-08-06 | Vehicle time-delay detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203366536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034244A (en) * | 2020-11-04 | 2020-12-04 | 南京航天工业科技有限公司 | ETC abnormal signal detection method and system |
-
2013
- 2013-08-06 CN CN 201320479249 patent/CN203366536U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034244A (en) * | 2020-11-04 | 2020-12-04 | 南京航天工业科技有限公司 | ETC abnormal signal detection method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |