CN106225956A - Temperature sensor multichannel resistance monitor station and detection method thereof - Google Patents
Temperature sensor multichannel resistance monitor station and detection method thereof Download PDFInfo
- Publication number
- CN106225956A CN106225956A CN201610794238.5A CN201610794238A CN106225956A CN 106225956 A CN106225956 A CN 106225956A CN 201610794238 A CN201610794238 A CN 201610794238A CN 106225956 A CN106225956 A CN 106225956A
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- temperature sensor
- monitor station
- conversion unit
- keyboard
- detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
Abstract
The invention discloses a kind of temperature sensor multichannel resistance monitor station and detection method thereof, this monitor station includes controller, AD conversion unit, keyboard & display and indicating lamp module, described monitor station includes that controller is connected with AD conversion unit, keyboard display module respectively, and described AD conversion unit is connected with detector unit.Described keyboard display module includes 8 Digital sum pipes and setting, startup detection and 16 keyboard matrixs of stopping for preset data.Described 8 Digital sum pipes include 3 bit function symbols and 5 bit data symbol.AD conversion unit uses the high-precision AD conversion chip of multichannel 12.Described indicating lamp module includes 24 luminous tubes that the sensor for showing corresponding 24 Air conduct measurement unit detections is the most qualified.Described detector unit is provided with 3 groups, and often group detector unit is provided with 8 passages.Through actually used, have that detection efficiency is high, accuracy of detection is good, and decrease artificial, well meet the process requirements of manufacturer.
Description
Technical field
The invention belongs to sensor detecting field, be specifically related to a kind of temperature sensor multichannel resistance monitor station and
Detection method.
Background technology
Temperature sensor is one of important sensor of automobile, motorcycle, it can by automobile, temperature of motorcycle motor or
Oil temperature is converted into resistance signal, by instrument according to the change of this resistance, reacts to driver with eye-catching indicating mode, with instead
Reflect the duty of current automobile, motorcycle.Therefore temperature-the resistance characteristic of temperature sensor grasp real-time for driver vapour
Car, motorcycle operation conditions have special importance.But in actual production process, due to this sensor in the fabrication process
There is certain discreteness, before motorcycle temperature sensor is dispatched from the factory, it is necessary to the temperature-resistance of key points several to each product
Value characteristic carries out detection and confirms, to ensure product quality.Detection mode is first to be placed in the temperature chamber of assigned temperature by sensor
Keeping a period of time, the temperature making sensor is consistent with the temperature of temperature chamber, then measures the resistance of sensor, to determine this biography
Sensor is the most qualified in the resistance of this temperature spot, during measuring, owing to sensor for temperature is sensitive, should this require to measure electricity
Flowing to end may be little, and conduction time is the shortest.In sum, in view of this detection process is complicated, the detection time is long, on a production line
Artificial being difficult to efficiently completes such work.
Summary of the invention
According to above the deficiencies in the prior art, the technical problem to be solved is that a kind of temperature sensor of proposition is many
Roadlock value monitor station, a kind of can be with multi-way detecting automobile, the detection equipment of motorcycle temperature sensor resistance---automobile, motor
Car temperature sensor critesistor monitor station, through actually used, has that detection efficiency is high, accuracy of detection is good, and decreases artificial,
Well meet the process requirements of manufacturer.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: a kind of temperature sensor multichannel resistance inspection
Scaffold tower, this monitor station includes controller, AD conversion unit, keyboard & display and indicating lamp module, and described monitor station includes controller
Being connected with AD conversion unit, keyboard display module respectively, described AD conversion unit is connected with detector unit.Described keyboard & display mould
Block includes 8 Digital sum pipes and setting, startup detection and 16 keyboard matrixs of stopping for preset data.Described 8 Digital sum pipes
Including 3 bit function symbols and 5 bit data symbol.AD conversion unit uses the high-precision AD conversion chip of multichannel 12.Described instruction
Lamp module includes 24 luminous tubes that the sensor for showing corresponding 24 Air conduct measurement unit detections is the most qualified.Described detection
Unit is provided with 3 groups, and often group detector unit is provided with 8 passages.
The detection method of a kind of temperature sensor multichannel resistance monitor station, the method comprises the following steps: step one, system
Initializing, controller accepts sign on；Step 2, ON switch K measure loop are powered, and stablize 100 milliseconds；Step
Three, read the value of 5 temperature sensor voltage V1 to be measured continuously and average；Step 4, calculate temperature sensor to be measured
Resistance value Rx；Step 5, judge that temperature sensor to be measured is the most qualified, and corresponding LED is set；Step 6, cycle detection are originally
The temperature sensor to be measured of 8 passages of group detector unit；Step 7,3 groups of detector units of cycle detection.Described step 4 calculates
Resistance value Rx, is calculated by formula Rx=V1*R1/ (4096-V1).
The medicine have the advantages that the present invention is a kind of can be with multi-way detecting automobile, the inspection of motorcycle temperature sensor resistance
Measurement equipment---automobile, motorcycle temperature sensor critesistor monitor station, through actually used, have detection efficiency height, detection essence
Spend, and decrease artificial, well meet the process requirements of manufacturer.
Accompanying drawing explanation
Below the content expressed by this specification accompanying drawing and the labelling in figure are briefly described:
Fig. 1 is the system architecture diagram of the detailed description of the invention of the present invention.
Fig. 2 is the testing process block diagram of the detailed description of the invention of the present invention.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, each component that the detailed description of the invention of the present invention is the most involved
Shape, structure, mutual alignment between each several part and annexation, the effect of each several part and operation principle, manufacturing process and
Operate with method etc., be described in further detail, to help those skilled in the art to the inventive concept of the present invention, technology
Scheme has more complete, accurate and deep understanding.
A kind of temperature sensor multichannel resistance monitor station, this monitor station include controller, AD conversion unit, keyboard & display and
Indicating lamp module, described monitor station includes that controller is connected with AD conversion unit, keyboard display module respectively, described AD conversion list
Unit is connected with detector unit.Described keyboard display module include 8 Digital sum pipes and for preset data setting, start detection and
16 keyboard matrixs stopped.Described 8 Digital sum pipes include 3 bit function symbols and 5 bit data symbol.AD conversion unit uses multichannel 12
The high-precision AD conversion chip of position.Described indicating lamp module includes the sensor for showing corresponding 24 Air conduct measurement unit detections
24 the most qualified luminous tubes.Described detector unit is provided with 3 groups, and often group detector unit is provided with 8 passages.
The detection method of a kind of temperature sensor multichannel resistance monitor station, the method comprises the following steps: step one, system
Initializing, controller accepts sign on；Step 2, ON switch K measure loop are powered, and stablize 100 milliseconds；Step
Three, read the value of 5 temperature sensor voltage V1 to be measured continuously and average；Step 4, calculate temperature sensor to be measured
Resistance value Rx；Step 5, judge that temperature sensor to be measured is the most qualified, and corresponding LED is set；Step 6, cycle detection are originally
The temperature sensor to be measured of 8 passages of group detector unit；Step 7,3 groups of detector units of cycle detection.Described step 4 calculates
Resistance value Rx, is calculated by formula Rx=V1*R1/ (4096-V1).
As it is shown in figure 1, system controller uses 51 single-chip microcomputers, serial is all used to lead between circuit, and each module for simplifying
News mode.16 key boards are mainly used in the setting of preset data, start detection and stop, and 8 bit data pipes are used for showing functor
And 5 bit data, 24 luminous tubes are the most qualified for the sensor showing 24 passages of correspondence, and luminous tube is lighted expression and closed
Lattice, on the contrary defective.ADC uses the high-precision AD conversion chip of multichannel 12, to ensure that certainty of measurement meets the requirements.
In order to reduce the impact on certainty of measurement such as power-supply fluctuation and temperature, this monitor station uses the detection of resistance rule of three
Principle, such as the high precision reference resistance that Fig. 1, R1～R8 are Low Drift Temperature, V0 is that (ADC chip is 12 to full scale value, and V0 is corresponding
Digital quantity is 4096), the value reading V1 by ADC, the value of Rx1 can be calculated, computing formula is as follows:
Rx1=V1*R1/ (4096-V1)
From computing function, the value of Rx1 is only and reference resistance R1 and V1 has relation, say, that as long as ensureing benchmark electricity
The precision of resistance R1, the measurement result of Rx1 just can be guaranteed.
1, the detection range of critesistor resistance is 50 Ω～30K Ω, and certainty of measurement is measured value ± 1%, indication range
It is 30 Ω～45K Ω, video data and data are set at most retain two-decimal
2, once can detect 24 tunnel detected pieces, be automatically performed time delay, measure resistance, judge whether the work such as qualified
3, the upper limit of detected pieces resistance, lower limit and detection delay time can be arranged and preserve, to adapt to different temperature points
Detection
4, the resistance of detected pieces is the most qualified is shown intuitively by 24 LED, and can inquire testing result
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by aforesaid way
Restriction, as long as have employed the method design of the present invention and the improvement of various unsubstantialities that technical scheme is carried out, or without changing
Enter and design and the technical scheme of the present invention are directly applied to other occasion, all within protection scope of the present invention.This
Bright protection domain should be as the criterion with the protection domain that claims are limited.
Claims (8)
1. a temperature sensor multichannel resistance monitor station, it is characterised in that this monitor station include controller, AD conversion unit,
Keyboard & display and indicating lamp module, described monitor station includes that controller is connected with AD conversion unit, keyboard display module respectively, institute
State AD conversion unit to be connected with detector unit.
Temperature sensor multichannel resistance monitor station the most according to claim 1, it is characterised in that described keyboard display module
Setting, startup including 8 Digital sum pipes with for preset data detect and 16 keyboard matrixs of stopping.
Temperature sensor multichannel resistance monitor station the most according to claim 2, it is characterised in that described 8 Digital sum pipe bags
Include 3 bit function symbols and 5 bit data symbol.
Temperature sensor multichannel resistance monitor station the most according to claim 1, it is characterised in that AD conversion unit uses many
The high-precision AD conversion chip of Channel 12-Bit.
Temperature sensor multichannel resistance monitor station the most according to claim 1, it is characterised in that described indicating lamp module bag
Include 24 luminous tubes that the sensor for showing corresponding 24 Air conduct measurement unit detections is the most qualified.
Temperature sensor multichannel resistance monitor station the most according to claim 1, it is characterised in that described detector unit is provided with
3 groups, often group detector unit is provided with 8 passages.
7., according to the detection method of temperature sensor multichannel resistance monitor station described in claim 1-6 any one, its feature exists
In, the method comprises the following steps:
Step one, system initialize, and controller accepts sign on；
Step 2, ON switch K measure loop are powered, and stablize 100 milliseconds；
Step 3, the continuous value reading 5 temperature sensor voltage V1 to be measured are also averaged；
Step 4, calculate resistance value Rx of temperature sensor to be measured；
Step 5, judge that temperature sensor to be measured is the most qualified, and corresponding LED is set；
Step 6, the temperature sensor to be measured of 8 passages of cycle detection this group detector unit；
Step 7,3 groups of detector units of cycle detection.
The detection method of temperature sensor multichannel resistance monitor station the most according to claim 7, it is characterised in that described step
Rapid four calculate resistance value Rx, are calculated by formula Rx=V1*R1/ (4096-V1).
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| CN201610794238.5A CN106225956A (en) | 2016-08-31 | 2016-08-31 | Temperature sensor multichannel resistance monitor station and detection method thereof |
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| CN201610794238.5A CN106225956A (en) | 2016-08-31 | 2016-08-31 | Temperature sensor multichannel resistance monitor station and detection method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981968A (en) * | 2018-10-09 | 2018-12-11 | 无锡隆盛科技股份有限公司 | A kind of resistance and temperature testing equipment for multichannel pyrostat |
| CN110207856A (en) * | 2019-06-28 | 2019-09-06 | 上海工程技术大学 | A kind of automatic testing method and device of temperature sensor for vehicle comprehensive performance |
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| CN108981968A (en) * | 2018-10-09 | 2018-12-11 | 无锡隆盛科技股份有限公司 | A kind of resistance and temperature testing equipment for multichannel pyrostat |
| CN110207856A (en) * | 2019-06-28 | 2019-09-06 | 上海工程技术大学 | A kind of automatic testing method and device of temperature sensor for vehicle comprehensive performance |
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