CN101950947A - Power management method of security system for vehicles - Google Patents
Power management method of security system for vehicles Download PDFInfo
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- CN101950947A CN101950947A CN201010297320XA CN201010297320A CN101950947A CN 101950947 A CN101950947 A CN 101950947A CN 201010297320X A CN201010297320X A CN 201010297320XA CN 201010297320 A CN201010297320 A CN 201010297320A CN 101950947 A CN101950947 A CN 101950947A
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Abstract
The invention discloses a power management method of a security system for vehicles, which comprises the following steps: a main controller continuously sends AT instructions to a GSM/GPRS security system in the working state; the GSM/GPRS working state is inquired, and when the detection result shows that the working state is abnormal or no data returns, the main controller switches off the power supplied by internal batteries and external power sources to the GSM/GPRS security system; and after the power is switched off for the set time, the main controller controls the system to be switched on again, and the GSM/GPRS security system is switched on again and successfully restarted in a hard start mode to work normally. The power management method of the invention newly designs and modifies the restart mode of the system, thereby improving the working stability and the working reliability of vehicle-mounted GPS/GPRS anti-theft equipment.
Description
Technical field
The invention belongs to the electronic communication technology field, relate to a kind of method for managing power supply, relate in particular to a kind of method for managing power supply of vehicle safety-protection system.
Background technology
Along with society and expanding economy, automobile/motorcycle/combustion gas vehicle using motor has entered among common people's the daily life, because the restriction of prior art, vehicle anti-theft faces great challenge.The antitheft equipment that provides in the market mainly contains mechanical lock, electronic lock, electronic alarm and GPS/GPRS and follows the trail of alarm etc.Though first three plants equipment certain antitheft and alert capability is arranged, but as car owner away from vehicle the time, antitheft equipment can not remote prompting car owner vehicle-state, and anti-theft effect is relatively poor.And GPS/GPRS follows the trail of alarm because monitoring vehicle state and positional information in real time, in time reminds car owner's vehicle-state unusual and control vehicle running state, so become the development trend of present vehicle security protection equipment.
The antitheft equipment of the vehicle GPS/GPRS that occurs on the current market, most of volume are big and its auxiliary device is external, are discerned and remove by the lawless person easily, thereby influence anti-theft effect.In addition, though the antitheft equipment of the microminiature GPS/GPRS that sells on the market has realized that antenna is built-in, be not easy to be found and remove by the lawless person, but because its volume restrictions, the power management partial properties is general, and system's power consumption is higher, causes automobile storage in the feed risk, influence vehicle and normally use, equipment dependability is not high.
Summary of the invention
Technical problem to be solved by this invention is: a kind of method for managing power supply of vehicle safety-protection system is provided, can improves stability, the reliability of the antitheft equipment work of vehicle GPS/GPRS.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of method for managing power supply of vehicle safety-protection system, described method comprises:
Described main controller constantly sends the AT instruction to the GSM/GPRS safety-protection system when work;
Inquiry GSM/GPRS operating state, when detecting working state abnormal, when perhaps not having data to return, main controller cuts off the power supply to the GSM/GPRS safety-protection system, comprises cutting off internal cell power supply and external power source;
After cutting off the power supply setting-up time, the main controller control system re-powers, and the GSM/GPRS safety-protection system re-powers start, restarts successfully the beginning operate as normal firmly.
As a preferred embodiment of the present invention, described method further comprises:
System boot, whether system detects dispatch from foreign news agency and exists, and as not having, hardware automatically switches to the battery mode; If any, then detect earlier the voltage of dispatch from foreign news agency, if dispatch from foreign news agency less than first voltage threshold, main controller cuts off the DC/DC power supply, hardware detection is lost to dispatch from foreign news agency, automatically switches to powered battery; If detect outer piezoelectric voltage greater than first voltage threshold, hardware cuts off powered battery, and system adopts the dispatch from foreign news agency supply power mode;
System monitoring peripheral hardware state and decision-making system operating state, as be in the NORMAL pattern then according to NORMAL pattern transceive data and control peripheral hardware, as be in the SLEEP pattern, then according to SLEEP pattern transceive data and control peripheral hardware; In the SLEEP pattern, the system monitoring external interrupt, central broken hair is given birth to and is then entered the NORMAL pattern, and according to NORMAL pattern transceive data;
Under the NORMAL pattern, system's normal power supply; Under the SLEEP pattern, system closing GPS, acceleration of gravity transducer, GSM/GPRS module only keep real-time clock;
When piezoelectric voltage was less than first voltage threshold outside system detects, system cut off the dispatch from foreign news agency power supply, then adopted the internal cell power supply, and sent relevant information to the car owner, informed the Vehicular battery state; Start vehicle as the car owner, outer piezoelectric voltage can be returned normal working voltage, and system automatically switches to the dispatch from foreign news agency power supply; Do not start Vehicular charging as the car owner, then system adopts the internal cell power supply always, is lower than second voltage threshold up to internal cell voltage; the GSM/GPRS module is shut down automatically, and main controller continues operation, and closes gps system; when cell voltage during less than battery protection voltage, system closedown.
As a preferred embodiment of the present invention, described method comprises:
System boot, whether system detects dispatch from foreign news agency and exists, and as not having, hardware automatically switches to the battery mode; Detect the voltage of dispatch from foreign news agency earlier if any, hardware, if dispatch from foreign news agency less than 11V, MCU cuts off the DC/DC power supply, hardware detection is lost to dispatch from foreign news agency, automatically switches to powered battery; If detect outer piezoelectric voltage greater than 11V, hardware cuts off powered battery, and system adopts the dispatch from foreign news agency supply power mode;
System monitoring peripheral hardware state and decision-making system operating state then, as be in the NORMAL pattern then according to NORMAL pattern transceive data and control peripheral hardware, as be in the SLEEP pattern, then according to SLEEP pattern transceive data and control peripheral hardware; Simultaneously in the SLEEP pattern, the system monitoring external interrupt, central broken hair is given birth to and is then entered the NORMAL pattern, and according to NORMAL pattern transceive data;
Under the NORMAL pattern, system's normal power supply, system's power consumption mainly has relation with the system data transmitting-receiving frequency; Under the SLEEP pattern, system closing GPS, acceleration of gravity transducer, GSM/GPRS module only keep real-time clock;
For fear of the vehicle power feed, when piezoelectric voltage was less than 11V outside system detects, system cut off the dispatch from foreign news agency power supply, then adopted the internal cell power supply, and sent relevant information to the car owner, informed the Vehicular battery state; Start vehicle as the car owner, outer piezoelectric voltage can be returned 12V, and system automatically switches to the dispatch from foreign news agency power supply; Do not start Vehicular charging as the car owner, then system adopts the internal cell power supply always, is lower than 3.4V up to internal cell voltage; the GSM/GPRS module is shut down automatically, and MCU partly continues operation, and closes gps system; when cell voltage during less than battery protection voltage, system closedown.
Beneficial effect of the present invention is: the method for managing power supply of the vehicle safety-protection system that the present invention proposes, new Change In Design system restart mode, improved the stability of the antitheft equipment work of vehicle GPS/GPRS, reliability.
Simultaneously, the inventive method is improved the power management of this system by the power circuit that improves the antitheft equipment of vehicle GPS/GPRS, make it can be reduced in system power dissipation under the SLEEP pattern, avoid the vehicle feed, and can be under the situation of only using internal cell, prolong System production time, thereby guarantee the normal operation of antitheft tracing system.
Description of drawings
Fig. 1 is the main flow chart of method for managing power supply of the present invention.
Fig. 2 is the flow chart of system exception recovery process of the present invention.
Fig. 3 is the composition schematic diagram of power-supply management system.
Embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
Embodiment one
See also Fig. 3, the present invention has disclosed the method for managing power supply of a kind of microminiature vehicle GPS/GPRS safety-protection system.Wherein, MCU controls DC/DC device, the power supply of VBAT system, GPS power supply LDO as the main controller of power supply.
The advance of native system is embodied in two aspects: the first, solved the system restoration problem under the system works abnormal conditions effectively, and make system works more reliable and more stable.The second, reduced the system power dissipation of system under the SLEEP pattern effectively, avoid the vehicle feed, and can under the situation of only using internal cell, prolong System production time, thereby guaranteed the normal operation of antitheft tracing system.
(1) sets forth the method that newly designs resolution system recovery problem when working condition is unusual.
Microminiature vehicle-mounted antitheft equipment in the market, the GSM/GPRS module major part of its installation does not possess reset function, so in the time of GSM/GPRS module operation irregularity, take software reset's method to realize restarting of system more.But soft reboot has the incomplete shortcoming that resets, and its RAM district data can not be reset reliably, can occur GSM after causing restarting once in a while and look for that net difficulty, GPRS adhere to difficulty, system's IMEI number is lost, and problem such as loses, calibration data is lost for SN number.
In order to address this problem, the present invention has used innovative design at power unit.See also Fig. 2, the step of the inventive method abnormal restoring work is as follows:
The MCU subsystem constantly sends the AT instruction to the GSM/GPRS subsystem when work, other operating states of inquiry GSM/GPRS operating state and module, when detecting working state abnormal, when perhaps not having data to return, the MCU subsystem cuts off the power supply of GSM/GPRS subsystem, comprises cutting off internal cell power supply and external power source.After cutting off the power supply certain hour, the MCU control system re-powers, and the GSM/GPRS system re-powers start, restarts firmly successfully, and module begins operate as normal.
(2) secondly, setting forth new design is reducing system power dissipation, is avoiding the method that adopted aspect the vehicle feed.System power supply control method and step be as shown in Figure 1:
System boot, whether system detects dispatch from foreign news agency and exists, and as not having, hardware automatically switches to the battery mode; If any, hardware detects the voltage of dispatch from foreign news agency earlier, if dispatch from foreign news agency is less than 11V (certainly being other setting voltages), MCU cuts off the DC/DC power supply, and hardware detection is lost to dispatch from foreign news agency, automatically switches to powered battery; If detect outer piezoelectric voltage greater than 11V (certainly being other setting voltages), hardware cuts off powered battery, and system adopts the dispatch from foreign news agency supply power mode.
System monitoring peripheral hardware state and decision-making system operating state then, as be in the NORMAL pattern then according to NORMAL pattern transceive data and control peripheral hardware, as be in the SLEEP pattern, then according to SLEEP pattern transceive data and control peripheral hardware; Simultaneously in the SLEEP pattern, the system monitoring external interrupt, central broken hair is given birth to and is then entered the NORMAL pattern, and according to NORMAL pattern transceive data.
Under the NORMAL pattern, system's normal power supply, system's power consumption mainly has relation with the system data transmitting-receiving frequency.Under the SLEEP pattern, system closing GPS, the acceleration of gravity transducer, GSM/GPRS module (only keeping real-time clock) makes power consumption be reduced to a milliampere level.
For fear of the vehicle power feed, when system detected dispatch from foreign news agency (vehicle power) voltage less than 11V (certainly being other setting voltages), system cut off the dispatch from foreign news agency power supply, then adopted the internal cell power supply, and send relevant information to the car owner, inform the Vehicular battery state.Start vehicle as the car owner, outer piezoelectric voltage can be returned 12V (certainly being other setting voltages), and system automatically switches to the dispatch from foreign news agency power supply; Do not start Vehicular charging as the car owner; then system adopts the internal cell power supply always; be lower than 3.4V (certainly being other setting voltages) up to internal cell voltage; the GSM/GPRS module is shut down automatically; MCU partly continues operation; and close gps system, and when cell voltage during less than battery protection voltage, system closedown.Owing to adopted new design, system power dissipation effectively reduces, so TURP is disconnected outside, only adopts under the situation of in-line power, and system can lengthen working hours relatively, thereby guarantees the safety of vehicle.
In sum, the present invention improves the power management of this system by the power circuit that improves the antitheft equipment of vehicle GPS/GPRS, make it can be reduced in system power dissipation under the SLEEP pattern, avoid the vehicle feed, and can be under the situation of only using internal cell, prolong System production time, thereby guarantee the normal operation of antitheft tracing system; With stylish Change In Design system restart mode, improved the stability of the antitheft equipment work of vehicle GPS/GPRS, reliability.
Here description of the invention and application is illustrative, is not to want with scope restriction of the present invention in the above-described embodiments.Here the distortion of disclosed embodiment and change are possible, and the various parts of the replacement of embodiment and equivalence are known for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present invention or substantive characteristics, and the present invention can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the scope of the invention and spirit, can carry out other distortion and change here to disclosed embodiment.
Claims (3)
1. the method for managing power supply of a vehicle safety-protection system is characterized in that, described method comprises:
Described main controller constantly sends the AT instruction to the GSM/GPRS safety-protection system when work;
Inquiry GSM/GPRS operating state, when detecting working state abnormal, when perhaps not having data to return, main controller cuts off the power supply to the GSM/GPRS safety-protection system, comprises cutting off internal cell power supply and external power source;
After cutting off the power supply setting-up time, the main controller control system re-powers, and the GSM/GPRS safety-protection system re-powers start, restarts successfully the beginning operate as normal firmly.
2. the method for managing power supply of vehicle safety-protection system according to claim 1 is characterized in that:
Described method further comprises the steps:
System boot, whether system detects dispatch from foreign news agency and exists, and as not having, hardware automatically switches to the battery mode; If any, then detect earlier the voltage of dispatch from foreign news agency, if dispatch from foreign news agency less than first voltage threshold, main controller cuts off the DC/DC power supply, hardware detection is lost to dispatch from foreign news agency, automatically switches to powered battery; If detect outer piezoelectric voltage greater than first voltage threshold, hardware cuts off powered battery, and system adopts the dispatch from foreign news agency supply power mode;
System monitoring peripheral hardware state and decision-making system operating state, as be in the NORMAL pattern then according to NORMAL pattern transceive data and control peripheral hardware, as be in the SLEEP pattern, then according to SLEEP pattern transceive data and control peripheral hardware; In the SLEEP pattern, the system monitoring external interrupt, central broken hair is given birth to and is then entered the NORMAL pattern, and according to NORMAL pattern transceive data;
Under the NORMAL pattern, system's normal power supply; Under the SLEEP pattern, system closing GPS, acceleration of gravity transducer, GSM/GPRS module only keep real-time clock;
When piezoelectric voltage was less than first voltage threshold outside system detects, system cut off the dispatch from foreign news agency power supply, then adopted the internal cell power supply, and sent relevant information to the car owner, informed the Vehicular battery state; Start vehicle as the car owner, outer piezoelectric voltage can be returned normal working voltage, and system automatically switches to the dispatch from foreign news agency power supply; Do not start Vehicular charging as the car owner, then system adopts the internal cell power supply always, is lower than second voltage threshold up to internal cell voltage; the GSM/GPRS module is shut down automatically, and main controller continues operation, and closes gps system; when cell voltage during less than battery protection voltage, system closedown.
3. the method for managing power supply of vehicle safety-protection system according to claim 2 is characterized in that:
Described method comprises the steps:
System boot, whether system detects dispatch from foreign news agency and exists, and as not having, hardware automatically switches to the battery mode; Detect the voltage of dispatch from foreign news agency earlier if any, hardware, if dispatch from foreign news agency less than 11V, MCU cuts off the DC/DC power supply, hardware detection is lost to dispatch from foreign news agency, automatically switches to powered battery; If detect outer piezoelectric voltage greater than 11V, hardware cuts off powered battery, and system adopts the dispatch from foreign news agency supply power mode;
System monitoring peripheral hardware state and decision-making system operating state then, as be in the NORMAL pattern then according to NORMAL pattern transceive data and control peripheral hardware, as be in the SLEEP pattern, then according to SLEEP pattern transceive data and control peripheral hardware; Simultaneously in the SLEEP pattern, the system monitoring external interrupt, central broken hair is given birth to and is then entered the NORMAL pattern, and according to NORMAL pattern transceive data;
Under the NORMAL pattern, system's normal power supply, system's power consumption mainly has relation with the system data transmitting-receiving frequency; Under the SLEEP pattern, system closing GPS, acceleration of gravity transducer, GSM/GPRS module only keep real-time clock;
For fear of the vehicle power feed, when piezoelectric voltage was less than 11V outside system detects, system cut off the dispatch from foreign news agency power supply, then adopted the internal cell power supply, and sent relevant information to the car owner, informed the Vehicular battery state; Start vehicle as the car owner, outer piezoelectric voltage can be returned 12V, and system automatically switches to the dispatch from foreign news agency power supply; Do not start Vehicular charging as the car owner, then system adopts the internal cell power supply always, is lower than 3.4V up to internal cell voltage; the GSM/GPRS module is shut down automatically, and MCU partly continues operation, and closes gps system; when cell voltage during less than battery protection voltage, system closedown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010297320XA CN101950947A (en) | 2010-09-29 | 2010-09-29 | Power management method of security system for vehicles |
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| CN201010297320XA CN101950947A (en) | 2010-09-29 | 2010-09-29 | Power management method of security system for vehicles |
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| CN104219741A (en) * | 2013-06-03 | 2014-12-17 | 广西盛源行电子信息有限公司 | Method for monitoring a vehicle for 90 days by using the own battery of a vehicle terminal |
| CN105717827A (en) * | 2014-12-04 | 2016-06-29 | 财团法人资讯工业策进会 | Vehicle engine state detection device and method, and vehicle-mounted electronic device |
| CN105807700A (en) * | 2014-12-30 | 2016-07-27 | 芯讯通无线科技（上海）有限公司 | Vehicle-mounted monitoring device |
| CN108732968A (en) * | 2018-05-21 | 2018-11-02 | 珠海格力电器股份有限公司 | Fault repairing device and control method and device thereof, storage medium and electric appliance |
| CN110336941A (en) * | 2019-06-26 | 2019-10-15 | 安徽迅科智能技术有限公司 | A kind of security-protecting and monitoring method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104219741A (en) * | 2013-06-03 | 2014-12-17 | 广西盛源行电子信息有限公司 | Method for monitoring a vehicle for 90 days by using the own battery of a vehicle terminal |
| CN104219741B (en) * | 2013-06-03 | 2019-02-22 | 广西盛源行电子信息股份有限公司 | Vehicle-mounted terminal equipment carries battery cell monitoring up to 90 days methods |
| CN105717827A (en) * | 2014-12-04 | 2016-06-29 | 财团法人资讯工业策进会 | Vehicle engine state detection device and method, and vehicle-mounted electronic device |
| CN105807700A (en) * | 2014-12-30 | 2016-07-27 | 芯讯通无线科技（上海）有限公司 | Vehicle-mounted monitoring device |
| CN108732968A (en) * | 2018-05-21 | 2018-11-02 | 珠海格力电器股份有限公司 | Fault repairing device and control method and device thereof, storage medium and electric appliance |
| CN110336941A (en) * | 2019-06-26 | 2019-10-15 | 安徽迅科智能技术有限公司 | A kind of security-protecting and monitoring method |
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Application publication date: 20110119 |