CN102271177B - Method and system for calibrating proximity sensor of mobile phone - Google Patents
Method and system for calibrating proximity sensor of mobile phone Download PDFInfo
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- CN102271177B CN102271177B CN201110200678.0A CN201110200678A CN102271177B CN 102271177 B CN102271177 B CN 102271177B CN 201110200678 A CN201110200678 A CN 201110200678A CN 102271177 B CN102271177 B CN 102271177B
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Abstract
The invention relates to the technical field of a mobile terminal, and discloses a method and system for calibrating a proximity sensor of a mobile phone. The method comprises the steps of fixing the mobile phone with the proximity sensor on a test fixture, arranging a panel for simulating a barrier on the test fixture, and adjusting the distance between the panel and the tested mobile phone to a specified distance; connecting the mobile phone with a PC (Personal Computer); after the reception of a calibration instruction transmitted by a PC end through the mobile phone, starting the proximity sensor to induct the panel for simulating the barrier, and inducting to read out a corresponding ADC (Airborne Digital Computer) reading at the moment; and comparing the ADC reading with a preset value, judging whether the ADC reading exceeds the preset value, and if not, storing the ADC reading. According to the invention, the problem of differences between mobile phone sensors is solved, the consistency of threshold values of the mobile phone sensors is ensured, and the calibrating precision of the proximity sensor of the mobile phone is increased. Simultaneously, the test efficiency is improved, and the production cost is reduced.
Description
Technical field
The present invention relates to technical field of mobile terminals, in particular a kind of proximity sensor of mobile phone calibration steps and system.
Background technology
Proximity transducer can well avoid the misoperation of capacitive touch screen, has been widely used on the smart mobile phone of middle and high end at present.Proximity transducer make use of the induction that principle that infrared emission receives again carrys out realize target distance.Usually need, to the ADC reading corresponding to transducer calibration distance of reaction, also this reading to be called threshold value after a Cell Phone Design completes.
Because transducer self also exists ± the error of 10%, when adding mobile phone assembling and the error brought of external environment, this threshold value be difficult to accomplish consistent.Make proximity sensor of mobile phone calibration accuracy of the prior art poor, testing efficiency is low.Which type of algorithm that don't work in prior art goes this threshold value given, always has part mobile phone sensor and departs from threshold value.If increase collecting sample, the human cost during not only bringing research and development, a large amount of mobile phone samples also can bring the model machine cost of trial production.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, a kind of proximity sensor of mobile phone calibration steps and system are provided, solve the otherness between mobile phone sensor, ensure that the consistency of mobile phone sensor threshold value, and improve proximity sensor of mobile phone calibration accuracy, improve testing efficiency simultaneously, reduce production cost.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A calibration steps for proximity sensor of mobile phone, wherein, comprises step:
A, the mobile phone of band proximity transducer to be fixed on test fixture, and the panel of an analog obstacle thing to be set on this test fixture, and to regulate the distance between this panel and tested mobile phone to be a distance to a declared goal;
B, mobile phone and PC to be coupled together;
C, PC send proximity transducer calibration command by serial communication to mobile phone;
D, mobile phone, receiving after PC holds the calibration command sent, start the panel of proximity transducer to analog obstacle thing and respond to, and induction read now corresponding ADC reading;
E, this ADC reading and a predetermined value to be compared, judge whether this ADC reading exceeds this predetermined value, when no, this ADC reading is stored.
The calibration steps of described proximity sensor of mobile phone, wherein, described PC sends pstest calibration command to mobile phone by Serial Port Communication Software.
The calibration steps of described proximity sensor of mobile phone, wherein, described mobile phone receives this pstest calibration command, controls the proximity transducer starting mobile phone, responds to, obtain the reading of an ADC after induction to the panel of analog obstacle thing.
The calibration steps of described proximity sensor of mobile phone, wherein, described step e also comprises: when judging that this ADC reading exceeds this predetermined value, readjusting the distance between this target obstacle and tested mobile phone, and returning step C.
The calibration steps of described proximity sensor of mobile phone, wherein, described step e also comprises: be stored in the nonvolatile storage of mobile phone by this ADC reading, call for proximity transducer driver.
The calibration steps of described proximity sensor of mobile phone, wherein, described step e also comprises: be kept in journal file by this ADC reading.
A kind of calibration system of proximity sensor of mobile phone, wherein, comprise: the mobile phone of PC, band proximity transducer, for fixing the test fixture of this mobile phone, the panel of the analog obstacle thing that this test fixture is arranged, and one for regulating the adjusting device of the spacing of this panel and tested mobile phone;
Described PC is connected with mobile phone, for sending proximity transducer calibration command by serial communication to mobile phone;
Described mobile phone comprises:
Receive and control module, for receiving after PC hold the calibration command sent, start the panel of proximity transducer to analog obstacle thing and respond to, and induction reading the ADC reading of now correspondence;
Multilevel iudge module, for this ADC reading and a predetermined value being compared, judges whether this ADC reading exceeds this predetermined value;
Memory module, for when judging that this ADC reading does not exceed this predetermined value, stores this ADC reading.
The calibration system of described proximity sensor of mobile phone, wherein, described PC sends pstest calibration command to mobile phone by Serial Port Communication Software.
The calibration system of described proximity sensor of mobile phone, wherein, described mobile phone also comprises:
Heavy adjustment module, for when judging that this ADC reading exceeds this predetermined value, readjusts the distance between this target obstacle and tested mobile phone.
The calibration system of described proximity sensor of mobile phone, wherein, described memory module comprises:
First memory cell, for being stored in the nonvolatile storage of mobile phone by this ADC reading, calls for proximity transducer driver;
Second memory cell, for being kept at this ADC reading in journal file.
Proximity sensor of mobile phone calibration steps provided by the present invention and system, in daily factory testing calibration procedure, a target obstacle is added owing to have employed, and given target range (as 5cm, also can carry out the value of this distance given according to concrete requirement).Mobile phone and PC are coupled together, utilizes serial communication, send test instruction to mobile phone.Mobile phone, receiving after PC holds the test instruction of sending, starts proximity transducer, and reads now corresponding ADC reading, under this reading is 5CM barrier, and the numerical value of proximity transducer.After obtaining numerical value, be stored in the nonvolatile storage of mobile phone on the one hand, call for proximity transducer driver.In addition in order to daily product quality monitoring, can also this threshold value be kept in journal file, solve the otherness between mobile phone sensor, ensure that the consistency of mobile phone sensor threshold value, and improve proximity sensor of mobile phone calibration accuracy, improve testing efficiency simultaneously, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the proximity sensor of mobile phone calibration system syndeton schematic diagram of the embodiment of the present invention.
Fig. 2 is the test fixture backboard open mode structural representation of embodiment of the present invention proximity sensor of mobile phone calibration system.
Fig. 3 is the test fixture backboard closure state structural representation of embodiment of the present invention proximity sensor of mobile phone calibration system.
Fig. 4 is the proximity sensor of mobile phone calibration steps flow chart of the embodiment of the present invention.
Fig. 5 is the cell-phone function theory diagram of the embodiment of the present invention.
Embodiment
A kind of proximity sensor of mobile phone calibration steps provided by the present invention and system, for making object of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The calibration system of a kind of proximity sensor of mobile phone that the embodiment of the present invention provides, be mainly used in the detection calibration carrying out proximity sensor of mobile phone in the daily production of mobile phone, as shown in Figure 1, the calibration system of the proximity sensor of mobile phone of the present embodiment comprises: PC 100, band proximity transducer mobile phone 200, for fixing the test fixture 300 of this mobile phone.This test clip 300 is provided with the panel 310 of an analog obstacle thing, and is provided with one for regulating the adjusting device 320 of the spacing of this panel 310 and tested mobile phone 200.
Wherein, proximity transducer replaces the contact measurement modes such as limit switch, to carry out without the need to contact detection object the general name being detected as object transducer.Can detected object mobile message and there is information and be converted to electric signal.In the detection mode being changed to electric signal, comprise the mode of the vortex flow produced in the metallic object of the detected object utilizing electromagnetic induction to cause, catch the mode of the mode of the volume change close to the electric signal caused surveying body, sharp stone and guide switch.
To proximity sensor of mobile phone carry out calibration testing time, by described mobile phone 200 and PC(computer) 100 to be connected, described PC100 is used for sending proximity transducer calibration command by serial communication to mobile phone 200.Wherein, described PC sends pstest calibration command to mobile phone by Serial Port Communication Software.
The calibration system of the proximity sensor of mobile phone of the invention described above embodiment, can be put into the threshold testing in laboratory in the daily production of factory and go.The panel 310 of an analog obstacle thing is added in daily factory testing calibration procedure, and given target range (as 5cm, also can carry out the value of this distance given according to concrete requirement).Mobile phone 200 is coupled together with PC100, utilizes serial communication, send test instruction to mobile phone.Mobile phone, receiving after PC holds the test instruction of sending, starts proximity transducer, and reads now corresponding ADC(threshold value) reading, under this reading is 5CM barrier, the numerical value of proximity transducer.After obtaining numerical value, be stored in the nonvolatile storage of mobile phone on the one hand, call for proximity transducer driver.In addition in order to daily product quality monitoring, this threshold value can also be kept in journal file.Specific as follows:
As shown in Figure 4, the calibration steps of a kind of proximity sensor of mobile phone that the embodiment of the present invention provides, comprises the following steps:
Step S410, see Fig. 1, the mobile phone 200 of band proximity transducer is fixed on test fixture 300, and the panel 310 of an analog obstacle thing is set on this test fixture 300, and the distance between this panel 310 and tested mobile phone 200 is regulated to be a distance to a declared goal, as 5cm.
See Fig. 2, test fixture 300 is provided with mobile phone rest area 301, this mobile phone rest area can power for mobile phone and communicate with PC.The panel 310 of analog obstacle thing is height adjustable panel, is used as analog obstacle thing here.PC 100 end is provided with serial communication program, to communicate with mobile phone, sends calibration command and accepts calibration data.
Step S420, mobile phone 200 to be coupled together with PC 100.As shown in Figure 1, after mobile phone power-on, utilize data wire to be connected with PC, after connecting, serial communication program can enter step S430 to the reception of transmission and data that mobile phone carries out instruction.
Step S430, PC 100 send proximity transducer calibration command by serial communication to mobile phone 200; Wherein, described PC sends pstest calibration command to mobile phone 200 by Serial Port Communication Software.
In this step, should be noted that the foreign matter above cleaning sensing, because the Infrared of sensor emission also can reflect to transducer by foreign matter, the distance perspective made the mistake should.Then, after closed back plate 302, on the Serial Port Communication Software of PC end, send " pstest " calibration command to mobile phone 200, this instruction is the instruction starting proximity transducer, and enters step S440.
Step S440, mobile phone, receiving after PC holds the calibration command sent, start the panel of proximity transducer to analog obstacle thing and respond to, and induction read now corresponding ADC reading;
In the present embodiment, connect above-mentioned shown in, after mobile phone receives this pstest calibration command, control to start the proximity transducer of mobile phone, the panel of analog obstacle thing responded to, after induction, obtains the reading of an ADC.This reading is in 5cm situation, the threshold value of sensor-triggered.
Step S450, this ADC reading and a predetermined value to be compared, judge whether this ADC reading exceeds this predetermined value, when no, enters step S451; When being, enter step S452.
Step S451, this ADC reading to be stored.Such as, can this ADC reading be stored in the nonvolatile storage of mobile phone, call for proximity transducer driver.Also this ADC reading can be kept in journal file.Namely, after obtaining ADC reading, on the one hand this ADC reading is stored in the nonvolatile storage of mobile phone, calls for proximity transducer driver.In addition in order to daily product quality monitoring, this threshold value can also be kept in journal file.
Step S452, when judging that this ADC reading exceeds this predetermined value, readjust the distance between this target obstacle and tested mobile phone, and detect whether whether have foreign matter above transducer, return step S430.
Therefore the embodiment of the present invention solves the otherness between mobile phone sensor, ensure that the consistency of mobile phone sensor threshold value, and improve proximity sensor of mobile phone calibration accuracy, improve testing efficiency simultaneously, reduce production cost.
Wherein, as shown in Figure 5, described mobile phone 200 comprises:
Receive and control module 210, for receiving after PC hold the calibration command sent, start the panel of proximity transducer to analog obstacle thing and respond to, and induction reading the ADC reading of now correspondence; As detailed above.
Multilevel iudge module 220, for this ADC reading and a predetermined value being compared, judges whether this ADC reading exceeds this predetermined value; As detailed above.
Memory module 230, for when judging that this ADC reading does not exceed this predetermined value, stores this ADC reading, as detailed above.
Heavy adjustment module 240, for when judging that this ADC reading exceeds this predetermined value, readjusts the distance between this target obstacle and tested mobile phone, as detailed above.
Wherein, described memory module 230 comprises:
First memory cell, for being stored in the nonvolatile storage of mobile phone by this ADC reading, calls for proximity transducer driver, as detailed above.
Second memory cell, for this ADC reading is kept in journal file, as detailed above.
In sum, proximity sensor of mobile phone calibration steps provided by the present invention and system, in daily factory testing calibration procedure, a target obstacle is added owing to have employed, and given target range (as 5cm, also can carry out the value of this distance given according to concrete requirement).Mobile phone and PC are coupled together, utilizes serial communication, send test instruction to mobile phone.Mobile phone, receiving after PC holds the test instruction of sending, starts proximity transducer, and reads now corresponding ADC reading, under this reading is 5CM barrier, and the numerical value of proximity transducer.After obtaining numerical value, be stored in the nonvolatile storage of mobile phone on the one hand, call for proximity transducer driver.In addition in order to daily product quality monitoring, can also this threshold value be kept in journal file, solve the otherness between mobile phone sensor, ensure that the consistency of mobile phone sensor threshold value, and improve proximity sensor of mobile phone calibration accuracy, improve testing efficiency simultaneously.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to claims of the present invention.
Claims (5)
1. a calibration steps for proximity sensor of mobile phone, is characterized in that, comprises step:
A, the mobile phone of band proximity transducer to be fixed on test fixture, and the panel of an analog obstacle thing to be set on this test fixture, and to regulate the distance between this panel and tested mobile phone to be a distance to a declared goal;
B, mobile phone and PC to be coupled together;
C, PC send proximity transducer calibration command by serial communication to mobile phone;
D, mobile phone, receiving after PC holds the calibration command sent, start the panel of proximity transducer to analog obstacle thing and respond to, and induction read now corresponding ADC reading;
E, this ADC reading and a predetermined value to be compared, judge whether this ADC reading exceeds this predetermined value, when no, this ADC reading is stored;
Described step e also comprises: when judging that this ADC reading exceeds this predetermined value, readjusting the distance between this target obstacle and tested mobile phone, and returning step C;
Described step e also comprises: be kept in journal file by this ADC reading;
Described calibration steps carries out in daily production;
Described step e also comprises: be stored in the nonvolatile storage of mobile phone by this ADC reading, call for proximity transducer driver;
Wherein, described ADC reading corresponds to after mobile phone complete design the distance of reaction close to transducer calibration;
Described distance to a declared goal is 5cm.
2. the calibration steps of proximity sensor of mobile phone according to claim 1, it is characterized in that, described step C is specially: PC sends pstest calibration command to mobile phone by Serial Port Communication Software.
3. the calibration steps of proximity sensor of mobile phone according to claim 2, it is characterized in that, described step D is specially: mobile phone receives this pstest calibration command, controls the proximity transducer starting mobile phone, the panel of analog obstacle thing is responded to, after induction, obtains the reading of an ADC.
4. the calibration system of a proximity sensor of mobile phone, it is characterized in that, comprise: PC, band proximity transducer mobile phone, for fixing the test fixture of this mobile phone, the panel of the analog obstacle thing that this test fixture is arranged, and one for regulating the adjusting device of the spacing of this panel and tested mobile phone;
Described PC is connected with mobile phone, for sending proximity transducer calibration command by serial communication to mobile phone;
Described mobile phone comprises:
Receive and control module, for receiving after PC hold the calibration command sent, start the panel of proximity transducer to analog obstacle thing and respond to, and induction reading the ADC reading of now correspondence;
Multilevel iudge module, for this ADC reading and a predetermined value being compared, judges whether this ADC reading exceeds this predetermined value;
Memory module, for when judging that this ADC reading does not exceed this predetermined value, stores this ADC reading;
Heavy adjustment module, for when judging that this ADC reading exceeds this predetermined value, readjusts the distance between this target obstacle and tested mobile phone;
Described memory module comprises: the second memory cell, for being kept in journal file by this ADC reading;
Described calibration system is arranged in daily production;
Described memory module also comprises:
First memory cell, for being stored in the nonvolatile storage of mobile phone by this ADC reading, calls for proximity transducer driver;
Wherein, described ADC reading corresponds to after mobile phone complete design the distance of reaction close to transducer calibration;
Described distance to a declared goal is 5cm.
5. the calibration system of proximity sensor of mobile phone according to claim 4, is characterized in that, described PC sends pstest calibration command to mobile phone by Serial Port Communication Software.
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| CN201110200678.0A CN102271177B (en) | 2011-07-18 | 2011-07-18 | Method and system for calibrating proximity sensor of mobile phone |
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| CN201110200678.0A CN102271177B (en) | 2011-07-18 | 2011-07-18 | Method and system for calibrating proximity sensor of mobile phone |
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| CN102665008B (en) * | 2012-05-08 | 2013-11-13 | 广东欧珀移动通信有限公司 | Detecting algorithm for infrared proximity sensor of touch screen mobile phone |
| CN103581394B (en) * | 2012-08-02 | 2017-08-04 | 希姆通信息技术（上海）有限公司 | The test device and method of testing of the proximity transducer of mobile terminal |
| CN103353621B (en) * | 2013-06-14 | 2015-08-26 | 广东欧珀移动通信有限公司 | A kind of method that mobile terminal proximity transducer is calibrated and this mobile terminal |
| CN103442136B (en) * | 2013-08-19 | 2015-07-15 | 惠州Tcl移动通信有限公司 | Method and system for dual calibration of proximity sensor |
| CN103837910B (en) * | 2014-03-20 | 2017-09-26 | 深圳市金立通信设备有限公司 | Method and terminal that a kind of proximity transducer threshold value is determined |
| CN104183205B (en) * | 2014-07-30 | 2017-02-08 | 三星半导体(中国)研究开发有限公司 | Method for testing screen of portable electronic equipment via portable electronic equipment |
| CN104503574B (en) * | 2014-12-17 | 2017-08-25 | 青岛海信移动通信技术股份有限公司 | A kind of calibration method of range sensor, apparatus and system |
| CN104457821B (en) * | 2014-12-30 | 2017-04-19 | 上海畅联智融通讯科技有限公司 | Test device and test method of proximity detector |
| CN105628079B (en) * | 2015-12-30 | 2021-07-30 | 上海闻泰电子科技有限公司 | Dynamic calibration method for distance sensor |
| CN107192900A (en) * | 2016-03-15 | 2017-09-22 | 纬创资通(昆山)有限公司 | The tester table of handheld electronic apparatus |
| CN105897987B (en) * | 2016-04-21 | 2018-11-09 | 青岛海信移动通信技术股份有限公司 | Sensor intelligent manufactures calibrating installation and its calibration method |
| CN107438123A (en) * | 2016-05-27 | 2017-12-05 | 展讯通信（上海）有限公司 | For detecting the test device of mobile terminal Proximity Sensor |
| CN106412191A (en) * | 2016-08-24 | 2017-02-15 | 努比亚技术有限公司 | Automated testing method and device thereof |
| CN107339961B (en) * | 2016-12-20 | 2019-08-06 | 北京小米移动软件有限公司 | The method and device of calibrated distance sensor, electronic equipment |
| CN107631750B (en) * | 2017-08-04 | 2021-05-18 | 宇龙计算机通信科技(深圳)有限公司 | Method, device, terminal and storage medium for testing terminal to be tested |
| CN111521213A (en) * | 2017-11-20 | 2020-08-11 | 侯苏华 | Sensor testing device and method |
| CN109061611B (en) * | 2018-09-12 | 2021-04-13 | Oppo广东移动通信有限公司 | Proximity sensor calibration method and related device |
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