CN101750162B - Method, device and terminal for detection of terminal abnormal heating - Google Patents
Method, device and terminal for detection of terminal abnormal heating Download PDFInfo
- Publication number
- CN101750162B CN101750162B CN2009102227061A CN200910222706A CN101750162B CN 101750162 B CN101750162 B CN 101750162B CN 2009102227061 A CN2009102227061 A CN 2009102227061A CN 200910222706 A CN200910222706 A CN 200910222706A CN 101750162 B CN101750162 B CN 101750162B
- Authority
- CN
- China
- Prior art keywords
- terminal
- current
- current value
- abnormal heating
- output current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The embodiment of the invention provides a method, a device and a terminal for the detection of terminal abnormal heating, wherein the method comprises the steps: acquiring a current value of an output current from a power supply module which supplies power to the terminal; judging whether the current value of the output current is more than a current threshold value; if the current value of the output current is more than the current threshold value, determining that abnormal heating at the terminal is generated; and if the current value of the output current is not more than the current threshold value, determining that abnormal heating at the terminal is not generated. The method, the device and the terminal for the detection of terminal abnormal heating according to the embodiment of the invention judge whether abnormal heating is generated at the terminal via the current value of the output current from the power supply module, thereby reducing detection error.
Description
Technical field
The embodiment of the invention relates to detection technique, relates in particular to the heating of a kind of terminal abnormal detection method, device and terminal.
Background technology
At present, the more and more power consumption of terminal that cause of the function at terminal increase, and more and more miniaturization of terminal, and power consumption of terminal increases and miniaturization causes the thermal value at terminal to increase.(for example short circuit etc.) causes the terminal that slight heating is arranged if terminal inner breaks down; And because the user can't identification should slight heating be normal heating or abnormal heating; Continue to use, the small fault of terminal inner can develop into significant trouble and finally cause pernicious incident of generating heat.So whether the sense terminals heating belongs to abnormal heating is very important.
In the prior art, terminal abnormal heating detection method mainly is based on temperature detection.Be specially: one or more thermal sensors and an administrative unit are set in the terminal, and each thermal sensor is connected with administrative unit.If the detected temperature of one or more thermal sensors exceeds pre-set threshold, then administrative unit confirms to have occurred abnormal heating.
In realizing process of the present invention; The inventor finds to have following problem in the prior art at least: because the stationkeeping of thermal sensor; Distance between chip and the thermal sensor can influence the accuracy of the temperature that arrives of thermal sensor detection; And the detected temperature of thermal sensor receives environmental impact easily, causes the detection error of terminal abnormal heating detection method of the prior art big.
For example, there is the different working pattern at the terminal usually, and under the different working modes, the distribution of thermal source is different.Under first mode of operation, chip A heating, the detected temperature of first thermal sensor is T1.Under second mode of operation, chip B heating, the detected temperature of first thermal sensor is T2.Because chip B distance first thermal sensor is far away, so T2 is less than T1.Under the circumstances, when threshold value is set, have to threshold range is enlarged, so just reduced the accuracy that abnormal heating detects, improved the error that abnormal heating detects.
And for example; If under certain normal condition athermic chip since fault generating slight heating; And because this chip is far away apart from thermal sensor, the detected temperature of thermal sensor is within normal range like this, and administrative unit just can't detect current terminal and produce abnormal heating.
For another example, suppose that the temperature threshold that is provided with in advance is 95 degrees centigrade, when surpassing 95 degrees centigrade, administrative unit confirms to have produced abnormal heating.The terminal is in being in 25 degrees centigrade environment the time, and the temperature of thermal sensor position is 100 degrees centigrade, and slight abnormal heating has appearred in visible this terminal.When the terminal being moved in 0 degree centigrade the environment; Because environment temperature has descended 25 degrees centigrade; So the temperature of thermal sensor position also descends about 25 degrees centigrade, at this moment the temperature of thermal sensor position becomes 75 degrees centigrade, is lower than in advance 95 degrees centigrade of the temperature thresholds that are provided with; Administrative unit confirms that this terminal does not have abnormal heating like this; And in fact this terminal has produced abnormal heating, and only the rising of terminal temperature has been offset in the reduction of environment temperature, causes the erroneous judgement of administrative unit disconnected.Same reason for the terminal that does not produce abnormal heating, if when moving to this terminal in the environment that temperature raise, because environment temperature raises, causes the detected temperature of thermal sensor to raise, thereby causes the erroneous judgement of administrative unit disconnected.
It is thus clear that, this terminal abnormal heating detection method based on temperature detection, it is big to detect error.
Summary of the invention
The embodiment of the invention provides the heating of a kind of terminal abnormal detection method, device and terminal, in order to solve the big problem of terminal abnormal heating detection method error in the prior art, reduces the detection error of terminal abnormal heating detection method.
The embodiment of the invention provides a kind of terminal abnormal heating detection method, comprising:
Be retrieved as the current value of output current of the supply module of terminal power supply;
Said terminal the unloading phase, whether the current value of judging said output current greater than first current threshold; If the current value of said output current, is confirmed said terminal greater than said first current threshold and is produced abnormal heating; If the current value of said output current is less than or equal to said first current threshold, confirm that said terminal does not produce abnormal heating;
In the standby stage at said terminal, whether the current value of judging said output current is greater than second current threshold; If the current value of said output current, is confirmed said terminal greater than said second current threshold and is produced abnormal heating; If the current value of said output current is less than or equal to said second current threshold, confirm that said terminal does not produce abnormal heating.
The embodiment of the invention also provides a kind of terminal abnormal heating pick-up unit, comprising:
Detection module is used to be retrieved as the current value of output current of the supply module of terminal power supply;
Administration module, be used for said terminal the unloading phase, whether the current value of judging the detected said output current of said detection module greater than first current threshold; If the current value of the detected said output current of said detection module, is confirmed said terminal greater than said first current threshold and is produced abnormal heating; If the current value of the detected said output current of said detection module is less than or equal to said first current threshold, confirm that said terminal does not produce abnormal heating; And be used for the standby stage at said terminal, whether the current value of judging the detected output current of said detection module is greater than second current threshold; If the current value of the detected said output current of said detection module, is confirmed said terminal greater than said second current threshold and is produced abnormal heating; If the current value of the detected said output current of said detection module is less than or equal to said second current threshold, confirm that said terminal does not produce abnormal heating.
The present invention also provides a kind of terminal, comprises foregoing terminal abnormal heating pick-up unit.
Terminal abnormal heating detection method, device and terminal that the embodiment of the invention provides; At first be retrieved as the current value of output current of the supply module of terminal power supply; Whether judge this current value then greater than current threshold, confirm through judged result whether the terminal has produced abnormal heating.Because electric current is not affected by environment, thereby can reduce the error of terminal abnormal heating detection method.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Shown in Figure 1ly be terminal abnormal heating detection method embodiment one process flow diagram of the present invention;
Shown in Figure 2ly be first resistance that relates in the various embodiments of the present invention the synoptic diagram that is connected with supply module;
Shown in Figure 3ly be first Hall element that relates in the various embodiments of the present invention the synoptic diagram that is connected with supply module;
Structural representation for terminal abnormal heating pick-up unit embodiment one of the present invention shown in Figure 4;
Structural representation for terminal abnormal heating pick-up unit embodiment two of the present invention shown in Figure 5.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
It is that internal short-circuit causes electric current excessive that the terminal produces the former at all of abnormal heating, so can confirm whether the terminal produces abnormal heating through detecting electric current.Because electric current can be not affected by environment, so to confirm whether the terminal produces the detection error of method of abnormal heating little through detecting electric current, the accuracy height.
Be illustrated in figure 1 as terminal abnormal heating detection method embodiment one process flow diagram of the present invention, comprise:
The circuit design at each terminal is different, and each terminal is also different for the requirement of thermal value.Can confirm current threshold according to actual conditions.For example, can obtain the corresponding relation between size of current and the thermal value, thereby confirm current threshold through experimental data.Perhaps also can calculate the corresponding relation that obtains between size of current and the thermal value, thereby confirm current threshold through the corresponding relation of electric current and heating.
Among the terminal abnormal of the present invention heating detection method embodiment one, at first be retrieved as the current value of output current of the supply module of terminal power supply, whether judge this current value then, confirm through judged result whether the terminal has produced abnormal heating greater than current threshold.Because electric current is not affected by environment, thereby can reduce the detection error of terminal abnormal heating detection method.
Be illustrated in figure 2 as the synoptic diagram that is connected of first resistance that relates in the various embodiments of the present invention and supply module.First resistance 1 is connected in the basic routing line of supply module 2; Obtain after the voltage difference at first resistance, 1 two ends; Can calculate current value according to formula I=U/R through first resistance 1; I is the current value through first resistance 1, and U is the voltage difference at first resistance, 1 two ends, and R is the resistance of first resistance 1.Supply module is the terminal power supply; Specifically be to be each module for power supply in the terminal; The mode that adopts parallel connection or be connected in series between each module, the branched line that is used to each module for power supply pools a basic routing line, and first resistance in the embodiment of the invention can be connected in the basic routing line.Among Fig. 2, first resistance is connected in the basic routing line that is connected with the negative pole of supply module, and first resistance also can be connected in the basic routing line that is connected with the positive pole of supply module.
Be illustrated in figure 3 as the synoptic diagram that is connected of first Hall element that relates in the various embodiments of the present invention and supply module.First Hall element 4 is connected in the basic routing line of supply module 2.First Hall element 4 comprises four terminals, and wherein two terminals are connected with basic routing line, can measure the electric current through first Hall element 4 through two other terminal, are the output current of supply module 2 through the electric current of first Hall element 4.
Supply module the terminal the unloading phase to the current value of terminal input difference is arranged usually to the current value of terminal input with in the standby stage at terminal; Each stage of terminal is provided with different current thresholds respectively; Can further reduce the error of terminal abnormal heating detection method, improve the accuracy that the terminal abnormal heating detects.
In order further to improve the accuracy that the terminal abnormal heating detects; More a plurality of current thresholds can be set; A plurality of current thresholds are the different phase of counterpart terminal respectively; In each stage, if the current value of supply module output current, confirms then that the terminal has produced abnormal heating greater than the current threshold in this stage.
In the prior art, detect after the abnormal heating at terminal, handle automatically at the terminal, and can not notify to the user.Like this, in case heating occurs, the user can't know that normal heating still is an abnormal heating.The user possibly think the normal heating at terminal by mistake abnormal heating; Thereby bring unnecessary anxiety to the user; The user also might think the abnormal heating at terminal by mistake the normal heating at terminal, thereby causes the terminal under the abnormal heating situation, to work on, and produces more serious consequence.
In order to overcome the problems referred to above of the prior art; In the embodiment of the invention, confirm that the terminal produces abnormal heating after, can be through alert program to User Alarms; For example; Can be at display alarm interface on the display screen at terminal or on the screen of the computer that is connected with the terminal, can display alarm literal or animation on the warning interface, for example; Can show on the warning interface that being used to notify the user current is abnormal heating or the literal or the animation of normal heating, the user can determine whether according to the content on the warning interface to continue to use the terminal like this.If normal heating, then the user can continue to use the terminal, if abnormal heating, then the user can temporarily stop using the terminal.Perhaps, can report to the police, for example report to the police through the tinkle of bells at terminal or the pilot lamp that is arranged on the terminal through sound or pilot lamp.
Be illustrated in figure 4 as the structural representation of terminal abnormal heating pick-up unit embodiment one of the present invention, this terminal abnormal heating pick-up unit 3 comprises detection module 11 and administration module 12.Detection module 11 is used to be retrieved as the current value of output current of the supply module of terminal power supply; Administration module 12 is connected with detection module, and whether the current value that is used to judge detection module 11 detected output currents is greater than current threshold; If the current value of detection module 11 detected output currents, is confirmed the terminal greater than current threshold and is produced abnormal heating; If the current value of detection module 11 detected output currents is less than or equal to current threshold, confirm that the terminal does not produce abnormal heating.
Be illustrated in figure 5 as the structural representation of terminal abnormal heating pick-up unit embodiment two of the present invention, this terminal abnormal heating pick-up unit 3 also comprises first resistance 1 in the basic routing line that is connected on the supply module 2 of supplying power into the terminal.Detection module 11 comprises operational amplifier 111, analog to digital converter 112 and central processing unit 113, and analog to digital converter 112 is connected with central processing unit 113 with operational amplifier 111 respectively, and central processing unit 113 is connected with administration module 12.Operational amplifier 111 is connected with the two ends of first resistance 1, is used for the voltage difference at first resistance, 1 two ends is amplified; Analog to digital converter 112 is used for the analog signal conversion of operational amplifier 111 outputs is become digital signal; Central processing unit 113 is used for going out the current value through first resistance 1 according to the calculated signals of analog to digital converter 112 inputs, is the current value of supply module output current through the current value of first resistance 1.
Terminal abnormal heating pick-up unit as shown in Figure 4 can also comprise first Hall element in the basic routing line that is connected on the supply module of supplying power into the terminal, and detection module specifically can be used to detect the current value through first Hall element.Current value through first Hall element promptly is the current value for the output current of supply module.
In the various embodiments of the present invention, first resistance can be precision resistance, and first Hall element can be accurate Hall element.
The embodiment of the invention also provides a kind of terminal, comprises the terminal abnormal heating pick-up unit that relates among each embodiment of front, and this terminal abnormal heating pick-up unit is connected with the supply module at terminal.
The terminal abnormal heating detection method, device and the terminal that provide in the embodiment of the invention; At first be retrieved as the current value of output current of the supply module of terminal power supply; Whether judge this current value then greater than current threshold, confirm through judged result whether the terminal has produced abnormal heating.Because electric current is not affected by environment, thereby can reduce the error of terminal abnormal heating detection method.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of programmed instruction; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (8)
1. a terminal abnormal heating detection method is characterized in that, comprising:
Be retrieved as the current value of output current of the supply module of terminal power supply;
Said terminal the unloading phase, whether the current value of judging said output current greater than first current threshold; If the current value of said output current, is confirmed said terminal greater than said first current threshold and is produced abnormal heating; If the current value of said output current is less than or equal to said first current threshold, confirm that said terminal does not produce abnormal heating;
In the standby stage at said terminal, whether the current value of judging said output current is greater than second current threshold; If the current value of said output current, is confirmed said terminal greater than said second current threshold and is produced abnormal heating; If the current value of said output current is less than or equal to said second current threshold, confirm that said terminal does not produce abnormal heating.
2. method according to claim 1 is characterized in that, the current value of the output current of the said supply module that is retrieved as terminal power supply comprises:
Obtain the voltage difference at the first resistance two ends; Said first resistance is connected in the basic routing line into the supply module of said terminal power supply;
Obtain current value according to the voltage difference at the said first resistance two ends, be the current value of the output current of said supply module through the current value of said first resistance through said first resistance; Perhaps
The current value of the output current of the said supply module that is retrieved as terminal power supply comprises: the current value of output current that is retrieved as the supply module of said terminal power supply through the Hall element in the basic routing line that is connected on supply module.
3. method according to claim 1 is characterized in that, also comprises: when said terminal produces abnormal heating, report to the police through the warning interface, perhaps report to the police through sound or pilot lamp.
4. a terminal abnormal heating pick-up unit is characterized in that, comprising:
Detection module is used to be retrieved as the current value of output current of the supply module of terminal power supply;
Administration module, be used for said terminal the unloading phase, whether the current value of judging the detected said output current of said detection module greater than first current threshold; If the current value of the detected said output current of said detection module, is confirmed said terminal greater than said first current threshold and is produced abnormal heating; If the current value of the detected said output current of said detection module is less than or equal to said first current threshold, confirm that said terminal does not produce abnormal heating; And be used for the standby stage at said terminal, whether the current value of judging the detected output current of said detection module is greater than second current threshold; If the current value of the detected said output current of said detection module, is confirmed said terminal greater than said second current threshold and is produced abnormal heating; If the current value of the detected said output current of said detection module is less than or equal to said second current threshold, confirm that said terminal does not produce abnormal heating.
5. terminal abnormal heating pick-up unit according to claim 4 is characterized in that, also comprises first resistance in the basic routing line that is connected on the supply module of supplying power into said terminal;
Said detection module comprises:
Operational amplifier is connected with the two ends of said first resistance, is used for the voltage difference at the said first resistance two ends is amplified;
Analog to digital converter is used for the analog signal conversion of said operational amplifier output is become digital signal;
Central processing unit is used for going out the current value through said first resistance according to the calculated signals of said analog to digital converter input, is the current value of said supply module output current through the current value of said first resistance.
6. terminal abnormal heating pick-up unit according to claim 4 is characterized in that, also comprises first Hall element in the basic routing line that is connected on the supply module of supplying power into said terminal;
Said detection module specifically is used to detect the current value through said first Hall element.
7. terminal abnormal heating pick-up unit according to claim 4 is characterized in that, also comprises alarm module, is used for when said administration module confirms that said terminal produces abnormal heating, reporting to the police through the warning interface, perhaps reports to the police through sound or pilot lamp.
8. a terminal is characterized in that, comprises that like the described terminal abnormal heating of arbitrary claim among claim 4-7 pick-up unit, said terminal abnormal heating pick-up unit is connected with the supply module at said terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102227061A CN101750162B (en) | 2009-11-12 | 2009-11-12 | Method, device and terminal for detection of terminal abnormal heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102227061A CN101750162B (en) | 2009-11-12 | 2009-11-12 | Method, device and terminal for detection of terminal abnormal heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101750162A CN101750162A (en) | 2010-06-23 |
| CN101750162B true CN101750162B (en) | 2012-05-23 |
Family
ID=42477466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102227061A Active CN101750162B (en) | 2009-11-12 | 2009-11-12 | Method, device and terminal for detection of terminal abnormal heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101750162B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346214A (en) * | 2011-08-18 | 2012-02-08 | 华为终端有限公司 | Method and device for monitoring abnormal power consumption of terminal equipment |
| CN102590597A (en) * | 2011-11-29 | 2012-07-18 | 深圳市金立通信设备有限公司 | Circuit and method for detecting abnormal current of mobile phone |
| CN102944734B (en) * | 2012-11-21 | 2015-12-23 | 小米科技有限责任公司 | A kind of method of monitor terminal state, supervisory circuit and terminal |
| CN104375027A (en) * | 2014-11-05 | 2015-02-25 | 福建联迪商用设备有限公司 | Method and device for testing low-power consumption electronic device and low-power consumption POS terminal |
| CN105842554B (en) * | 2016-01-29 | 2019-01-11 | 维沃移动通信有限公司 | Hardware fault detection method, detection system and the intelligent terminal of intelligent terminal |
| CN109714811A (en) * | 2018-12-10 | 2019-05-03 | 惠州Tcl移动通信有限公司 | A kind of SOT state of termination detection method, device, terminal and storage medium |
| CN112415388A (en) * | 2020-11-20 | 2021-02-26 | 珠海格力电器股份有限公司 | Motor fault detection method and device, electronic equipment and heating and ventilation equipment |
| CN114295155A (en) * | 2021-10-22 | 2022-04-08 | 广东省建设工程质量安全检测总站有限公司 | Microprocessing monitoring method, microprocessing monitoring device, microprocessing monitoring equipment and storage medium for electrical equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100476394C (en) * | 2005-12-31 | 2009-04-08 | 华为技术有限公司 | Detecting system and method |
| CN201266841Y (en) * | 2007-07-13 | 2009-07-01 | 布莱克和戴克公司 | Battery set |
| CN201303364Y (en) * | 2008-04-22 | 2009-09-02 | 中兴通讯股份有限公司 | Temperature monitoring module of mobile terminal battery and high-temperature monitoring circuit of mobile terminal battery |
-
2009
- 2009-11-12 CN CN2009102227061A patent/CN101750162B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100476394C (en) * | 2005-12-31 | 2009-04-08 | 华为技术有限公司 | Detecting system and method |
| CN201266841Y (en) * | 2007-07-13 | 2009-07-01 | 布莱克和戴克公司 | Battery set |
| CN201303364Y (en) * | 2008-04-22 | 2009-09-02 | 中兴通讯股份有限公司 | Temperature monitoring module of mobile terminal battery and high-temperature monitoring circuit of mobile terminal battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101750162A (en) | 2010-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101750162B (en) | Method, device and terminal for detection of terminal abnormal heating | |
| RU2618793C1 (en) | Method and device for measuring line resistance of control lines in alarm and management systems | |
| CN104635102A (en) | Electronic component detection device and detection method thereof | |
| CN103148903B (en) | Digital gas meter and its gas-stealing prevention device and antitheft gas method with gas-stealing prevention device | |
| CN111649872B (en) | Pressure sensor system with redundant diagnostics | |
| CN107462800A (en) | Bypass diode detection method and system in photovoltaic module | |
| CN202710109U (en) | Warehouse temperature and humidity intelligent monitoring system | |
| CN104317380A (en) | Monitoring and alarming method for abnormal condition of UPS (Uninterruptible Power Supply) | |
| JP2018164340A (en) | Dc ground fault detection device, photovoltaic power generation system, and program | |
| CN203376080U (en) | Open circuit detection system of multipath thermocouples | |
| CN103631173A (en) | Warehouse temperature and humidity intelligent monitoring system | |
| KR20160027186A (en) | Voltage-limiter monitoring | |
| US20130241592A1 (en) | Server with current monitoring system | |
| KR101575257B1 (en) | Apparatus and method for deciding connection status between devices of vehicle | |
| US20230387676A1 (en) | Industrial control apparatus and monitoring method for industrial control apparatus | |
| JP2016101012A (en) | Ground fault detector and ground fault detection method | |
| CN201069601Y (en) | Line temperature sensing fire detector based on resettable switch | |
| CN103852683A (en) | Detection circuit and detection method | |
| US9433127B2 (en) | Fan operation control system | |
| CN202256232U (en) | Harmful gas detecting device | |
| CN101860450B (en) | Method and device for querying alarm | |
| CN214896916U (en) | Stand alone type alarm box with environmental monitoring system | |
| CN218271106U (en) | System capable of identifying and intelligently switching positive and negative ends of thermocouple | |
| CN112055817B (en) | Redundant current measuring device with circuit interruption detection | |
| CN216928693U (en) | Energy storage battery module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171031 Address after: Metro Songshan Lake high tech Industrial Development Zone, Guangdong Province, Dongguan City Road 523808 No. 2 South Factory (1) project B2 -5 production workshop Patentee after: HUAWEI terminal (Dongguan) Co., Ltd. Address before: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee before: Huawei Device Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee after: Huawei Device Co., Ltd. Address before: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee before: HUAWEI terminal (Dongguan) Co., Ltd. |