CN204807318U - Multipurpose sensor detection case for automobile engine - Google Patents
Multipurpose sensor detection case for automobile engine Download PDFInfo
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- CN204807318U CN204807318U CN201520493858.6U CN201520493858U CN204807318U CN 204807318 U CN204807318 U CN 204807318U CN 201520493858 U CN201520493858 U CN 201520493858U CN 204807318 U CN204807318 U CN 204807318U
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 description 14
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Abstract
The utility model discloses an overcome the problem of sensor mutual interference to a many signals, multiple range simple, quick, accurate multipurpose sensor detection case for automobile engine is provided, in order to be used for the detection of a plurality of sensors to automobile engine. The utility model discloses a multipurpose sensor detection case for automobile engine includes sensor, box and installs controller, open type relay switch, low -voltage direct current source terminal, the ground terminal in the box, the controller is equipped with output control interface, sensor data interface, the signal output part of sensor and the sensor data interface of controller are connected to constitute the signal line of sensor, control end of relay switch with the output control interface of controller links to each other, and another control end links to each other with ground terminal or low -voltage direct current source terminal, two return circuits end of relay switch concatenate in among the power supply circuit or signal line of sensor.
Description
Technical field
The utility model relates to motor car engine test field, is specifically related to motor car engine multi-function sensor detection case.
Background technology
Sensor in real time, effectively can transmit each parts measurement parameter of engine to signal acquiring system in motor car engine test, and in test, the signal accuracy of sensor will affect the quality of data, and the quality of data directly can determine engine test result.And be constantly employed along with engine new technology, in engine test performance history, a large amount of model and the different high-precision sensor of measurement range must be adopted to carry out image data, because testing ground is hot environment, after long-time use, sensor linearity can change, and then affects signal accuracy.
Summary of the invention
The purpose of this utility model overcomes the problem that sensor disturbs mutually, thus provide a kind of multi signal, multiple range simply, motor car engine multi-function sensor detection case fast, accurately, for the detection of multiple sensor to motor car engine.
Motor car engine multi-function sensor detection case of the present utility model comprises sensor, casing and is installed on controller, normal-open type relay switch, low-voltage DC source terminal, the ground terminal in casing, and described controller is provided with and exports control interface, sensor data interface; The signal output part of described sensor is connected with the sensor data interface of controller, to form the signal line of sensor; A control end of described relay switch is connected with the output control interface of described controller, and another control end is connected with ground terminal or low-voltage DC source terminal; In the power circuit that two loop ends of described relay switch are serially connected with described sensor or signal line.
Before testing, sensor, relay switch, controller are all connected, when needing to utilize sensor to carry out data acquisition, the output control interface of controller exports predetermined level, the coil electricity of pilot relay switch, the loop adhesive of relay, sensor is made to obtain electric starting working, or the signal line conducting of sensor, the data of sensor are sent in controller, realize test.And when without the need to this sensor image data, controller can the coil blackout of pilot relay switch, thus disconnect power supply or the signal line of sensor, ensure that this sensor does not have data to transfer in controller.Owing to can be controlled the work of sensor easily by controller, therefore without the need to power supply or the signal wire of plug sensor frequent in test process, decrease the possibility of makeing mistakes.
The connection of two loop ends of above-mentioned relay switch has following two kinds of situations specifically:
1, described sensor is active type sensor, and two loop ends of described relay switch are serially connected with in the power circuit of described sensor.Active type sensor needs power supply to work, and is therefore controlled conducting or the shutoff of the power circuit of active type sensor by relay switch, can control the work of active type sensor.
2, described sensor is passive sensor, and two loop ends of described relay switch are serially connected with in the signal line of described sensor.Passive sensor needs power supply to work, and is therefore controlled conducting or the shutoff of the signal line of passive sensor by relay switch, can control the work of passive sensor.
Further, described sensor is multiple, all corresponding relay switch of each sensor, thus controller can be utilized to test to select certain sensor, closes all the other sensors simultaneously, guarantees can not interfere with each other between sensor.
Further, described controller is connected with touch-screen, to facilitate the control of sensor and data display.
Motor car engine of the present utility model multi-function sensor detection case can connect multiple sensor simultaneously, not only convenient control, and can reduce the possibility of makeing mistakes, and has good practicality.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of motor car engine multi-function sensor detection case of the present utility model.
Accompanying drawing indicates: 1: controller; 2: current mode pressure transducer; 3: voltage-type pressure transducer; 4:K type thermopair; 5:Pt100 thermopair; 6, touch-screen; K1, K2, K3, K4: normal-open type relay switch.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the effect and principle of work etc. of embodiment of the present utility model as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail.
Embodiment 1:
As shown in the figure, the motor car engine multi-function sensor detection case of the present embodiment comprises sensor, casing and is installed on controller 1 in casing, normal-open type relay K switch 1, K2, K3, K4, low-voltage DC source terminal (24V voltage), ground terminal (0V voltage), and described controller 1 is provided with multiple output control interface and sensor data interface; Wherein sensor is multiple, the all corresponding relay switch of each sensor, sensor is divided into active type sensor and passive sensor, in the present embodiment, there are two active type sensors and two passive sensors, wherein active type sensor is respectively current mode pressure transducer 2 and voltage-type pressure transducer 3, and passive sensor is respectively K type thermopair 4 and Pt100 thermopair 5.
The signal output part of each sensor connects with the corresponding sensor data interface of controller 1, to form the signal line of this sensor; A control end of described relay switch is connected with the corresponding output control interface of described controller 1, and another control end is connected with ground terminal; In the power circuit that two loop ends of described relay switch are serially connected with corresponding sensor or signal line.When sensor is active type sensor, two loop ends of relay switch are serially connected with in the power circuit of this active type sensor; When sensor is passive sensor, two loop ends of relay switch are serially connected with in the signal line of this passive sensor.
Controller 1 is connected with touch-screen 6, to facilitate the control of sensor and data display.
Before testing, each sensor, relay switch, controller 1 are all connected, when needing to utilize sensor to carry out data acquisition, the output control interface of controller 1 exports predetermined level signal (5V voltage), the coil electricity of pilot relay switch, the loop adhesive of relay, this sensor is made to obtain electric starting working, or make the signal line conducting of this sensor, the data of sensor are sent in controller 1, realize test.And when without the need to this sensor image data, controller 1 can the coil blackout of pilot relay switch, thus disconnect power supply or the signal line of sensor, ensure that this sensor does not have data to transfer in controller 1.Owing to can be controlled the work of sensor easily by controller 1, therefore without the need to power supply or the signal wire of plug sensor frequent in test process, decrease the possibility of makeing mistakes.
Specifically for current mode pressure transducer 2: when not needing current mode pressure transducer 2 to test, the output control interface output level of the controller 1 corresponding to it is low level, now the coil of relay switch K1 does not have electric current to flow through, the contact of relay switch K1 is normally open, namely contact 1,3 is connected, and current mode pressure transducer 2 can not get power supply and can not work; When needs current mode pressure transducer 2 is tested, the output control interface output level of the controller 1 corresponding to it is high level, now the coil of relay switch K1 has electric current to flow through, the contact of relay switch K1 is closure state, namely contact 1,2 is connected, and current mode pressure transducer 2 obtains power supply and starts working.
Above-mentioned controller 1 adopts PLC to make, the programming of PLC is utilized to interlock to make the output level of the output control interface of controller 1, namely synchronization can only export a high level, this ensures that there and only have a sensor to work at synchronization, thus the signal avoiding sensor is disturbed mutually.
Claims (5)
1. a motor car engine multi-function sensor detection case, it is characterized in that the controller, normal-open type relay switch, low-voltage DC source terminal, the ground terminal that comprise sensor, casing and be installed in casing, described controller is provided with and exports control interface, sensor data interface; The signal output part of described sensor is connected with the sensor data interface of controller, to form the signal line of sensor; A control end of described relay switch is connected with the output control interface of described controller, and another control end is connected with ground terminal or low-voltage DC source terminal; In the power circuit that two loop ends of described relay switch are serially connected with described sensor or signal line.
2. according to claim a kind of motor car engine multi-function sensor detection case, is characterized in that described controller is connected with touch-screen.
3. according to claim 1 and 2 kind of motor car engine multi-function sensor detection case, is characterized in that described sensor is active type sensor, and two loop ends of described relay switch are serially connected with in the power circuit of described sensor.
4. according to claim 1 and 2 kind of motor car engine multi-function sensor detection case, is characterized in that described sensor is passive sensor, and two loop ends of described relay switch are serially connected with in the signal line of described sensor.
5. according to claim 1 and 2 kind of motor car engine multi-function sensor detection case, is characterized in that described sensor is multiple, all corresponding relay switch of each sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493858.6U CN204807318U (en) | 2015-07-08 | 2015-07-08 | Multipurpose sensor detection case for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493858.6U CN204807318U (en) | 2015-07-08 | 2015-07-08 | Multipurpose sensor detection case for automobile engine |
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| CN204807318U true CN204807318U (en) | 2015-11-25 |
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| CN201520493858.6U Active CN204807318U (en) | 2015-07-08 | 2015-07-08 | Multipurpose sensor detection case for automobile engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884278A (en) * | 2019-04-02 | 2019-06-14 | 河海大学 | A kind of open source soil moisture content monitoring system and method based on Arduino |
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2015
- 2015-07-08 CN CN201520493858.6U patent/CN204807318U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884278A (en) * | 2019-04-02 | 2019-06-14 | 河海大学 | A kind of open source soil moisture content monitoring system and method based on Arduino |
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