CN202947823U - Pressure alarm system and mobile terminal - Google Patents
Pressure alarm system and mobile terminal Download PDFInfo
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- CN202947823U CN202947823U CN 201220695834 CN201220695834U CN202947823U CN 202947823 U CN202947823 U CN 202947823U CN 201220695834 CN201220695834 CN 201220695834 CN 201220695834 U CN201220695834 U CN 201220695834U CN 202947823 U CN202947823 U CN 202947823U
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- mobile terminal
- pressure
- pressure transducer
- alarm system
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Abstract
The utility model discloses a pressure alarm system and a mobile terminal. The pressure alarm system comprises a pressure sensor, a data processing module and an alarm execution module. The input end of the data processing module is in circuit connection with the output end of the pressure sensor. The output end of the data processing module is in circuit connection with the input end of the alarm execution module. The mobile terminal is also provided with a pressure-transmitting member. The pressure-transmitting member is arranged on the front or back surface of the casing of the mobile terminal and is matched with the pressure sensor in position. Due to the adoption of the pressure alarm system and the mobile terminal, when the mobile terminal is under pressure, based on the level of the pressure and the threat level of the pressure to the mobile terminal, the pressure alarm system can sound an alarm to remind a user with the mobile terminal to remove the pressure.
Description
Technical field
The present invention relates to the telecommunications field, relate in particular to the pressure alarm technology of mobile terminal.
Background technology
development along with the IT technology, mobile terminal miscellaneous, as mobile phone, PDA (Personal Digital Assistant, PSP (Play station portable), MP3/MP4, more and more universal, they not only give the unprecedented ultimate attainment enjoyment of people on the living conditions, also provide to people in work and greatly facilitate at present, mobile terminal is all to gently, thin, multifunction, the judicial convenience future development, formally because present portable equipment is all to gently, the thin future development that waits, so the intensity of structure can be subject to the impact in space, and cause the insufficient strength of mobile terminal own.In addition, when present mobile terminal often spatially asks most ultimate attainment, corresponding rising is arranged also above cost.For the display screen (LCD) of mobile terminal, the Primary Components such as touch-screen (TP) account for more than 35% of cost of whole portable equipment.If the consumer is in use, above Primary Component is damaged, to whole portable equipment beyond doubt one damage thoroughly, the consumer is when changing this type device, price is also costliness very.
If a kind of equipment is arranged; can be when mobile terminal be under pressure; according to the size of pressure and to the threaten degree of mobile terminal; give the alarm; remind the user of this mobile terminal to eliminate pressure, just can play the protection mobile terminal, improve the serviceable life of mobile terminal; save the cost of use, maintenance and replacing terminal device for the user, and avoid causing the waste of resource.
Summary of the invention
The purpose of this invention is to provide a kind of pressure alarm system and be provided with the mobile terminal of this pressure alarm system.
Pressure alarm system provided by the present invention comprises pressure transducer, data processing module and warning execution module; The input end of described data processing module is connected with the output terminal circuitry phase of described pressure transducer; The output terminal of described data processing module is connected with the input end circuitry phase of described warning execution module.
Mobile terminal provided by the present invention also is provided with pressure transmission part; Described pressure transmission part is arranged on the front housing or back housing of mobile terminal, and matches with the position of described pressure transducer.
Pressure alarm system provided by the present invention and mobile terminal; can be when mobile terminal be under pressure; according to the size of pressure and to the threaten degree of mobile terminal; give the alarm; remind the user of this mobile terminal to eliminate pressure, just can play the protection mobile terminal, improve the serviceable life of mobile terminal; save the cost of use, maintenance and replacing terminal device for the user, and avoid causing the waste of resource.
Description of drawings
Fig. 1 is the described pressure alarm system electrical block diagram of the embodiment of the present invention one;
Fig. 2 is the circuit diagram of the embodiment of the present invention one described pressure transducer.
Fig. 3 is mobile terminal when not being subject to ambient pressure, the described pressure transmission part schematic diagram of the embodiment of the present invention two;
Fig. 4 is mobile terminal when being subject to ambient pressure, the described pressure transmission part schematic diagram of the embodiment of the present invention two.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment one
As shown in Figure 1, a kind of pressure alarm system of the present embodiment protection comprises pressure transducer 101, data processing module 200 and warning execution module 300; The input end of described data processing module 200 is connected with the output terminal circuitry phase of described pressure transducer 101; The output terminal of described data processing module 200 is connected with the input end circuitry phase of described warning execution module 300.It will be appreciated by those skilled in the art that, pressure transducer 101 can be used for detecting the suffered pressure of current system, and sending to described data processing module 200 to process pressure information, described warning execution module 300 is carried out actuation of an alarm according to the result of described data processing module 200.It will be understood by those skilled in the art that described pressure transducer 101 is for being converted to the physical values such as weight, tire pressure, rank, external force, flow in the device of the differential wave in the mV/V scope.The electric signal that it will be understood by those skilled in the art that described pressure transducer 101 outputs is the non-linear electric signal of simulation.
The described pressure transducer 101 of the present embodiment is piezoresistive pressure sensor 101, and its circuit structure comprises the strain circuit of front end and the amplifying circuit of rear end as shown in Figure 2; Described strain circuit comprises the Wheatstone bridge 10 (Wheatstone bridge) that contains at least a voltage dependent resistor, as shown in Figure 2, the first port 11 of described Wheatstone bridge 10 is power port, is used for being connected with the Power Management Unit of mobile terminal; The 3rd port one 3 of described Wheatstone bridge 10 is grounding ports, is used for being connected with the ground of mobile terminal; The second port one 2 of described Wheatstone bridge 10 and the 4th port one 4 are output port, are used for being connected with described strain circuit; Connect a capacitor C between described the 4th port one 4 and the 3rd port one 3.It will be understood by those skilled in the art that described voltage dependent resistor is provided with foil gauge, when described foil gauge is under pressure, can change the resistance of its resistance, thereby the output voltage of Wheatstone bridge 10 is changed, thereby reach the purpose of detected pressures.Described Wheatstone bridge is provided with four bridge resistors.
As shown in Figure 2, the described pressure transducer 101 of the present embodiment, its described Wheatstone bridge comprises 4 bridge resistors, wherein two bridge resistors are voltage dependent resistor.Described capacitor C is 0.01 microfarad.
It will be understood by those skilled in the art that the electric signal of described Wheatstone bridge 10 outputs, its voltage is the millivolt level, can not satisfy the demand of detection, therefore, need to amplifying circuit be set in the rear end output signal of front end Wheatstone bridge 10 is amplified processing, to satisfy the demand that detects.Described amplifying circuit comprises: an amplifier 20 and four resistance, the electrode input end of described amplifier 20 are connected on the 4th port one 4 of described Wheatstone bridge 10 by the first resistance R 1 and a variohm R5; The negative input of described amplifier 20 is connected on the second port one 2 of Wheatstone bridge 10 by the second resistance R 2; The electrode input end of described amplifier 20 is also by the 3rd resistance R 3 ground connection; Be connected in series the 4th resistance R 4 between the output terminal of described amplifying circuit and negative input.Described amplifier 20 also is provided with power port and grounding ports, is respectively used to connect Power Management Unit and the ground connection of mobile terminal.Described the first resistance is that 620 kilo-ohms, described the second resistance are that the resistance of 470 kilo-ohms, described the 3rd resistance and the 4th resistance is 330 kilo-ohms; The maximal value of described variohm R5 is 200 kilo-ohms.It is the universal amplifier of LM2904 that described amplifier 20 can adopt model.
Described data processing module 200 comprises AD conversion unit 201 (ADC, Analog to Digital Converter) and micro-control unit 202 (MCU, Micro Control Unit); The input end of described AD conversion unit 201 is connected with the output terminal circuitry phase of described pressure transducer 101 and output terminal is connected with the input end circuitry phase of described micro-control unit 202.It will be appreciated by those skilled in the art that, the electric signal of the output terminal output of described pressure transducer 101 is the nonlinear model analog signal, need to carry out to carry out calculation process by micro-control unit 202 after modulus is processed to this electric signal, thereby control described warning execution module 300 according to result.
The threshold value M0 that described micro-control unit 202 has the output valve M of its AD conversion unit that receives 201 and its inner setting compares, the function that transmits control signal when described output valve M is greater than or equal to threshold value M0.Described MO such as can come according to the withstand voltage properties of the model of pressure transducer 101, user's protection demand, mobile terminal case and internal part thereof to set at the multiple parameters index.
Described warning execution module 300 can be display device, as showing module LCM (LCD Module), LED, (Light Emitting Diode) and control circuit thereof; Or audio frequency apparatus, as hummer (Buzzer), loudspeaker (SPEAKER) and power amplifier thereof (PA, Power Amplifier); Can also be vibrations equipment, as the vibrations motor.Because warning execution module 300 adopts the usual technological means of using in prior art, no longer give unnecessary details here.
Embodiment two
A kind of mobile terminal of the present embodiment protection can be mobile phone, PDA (Personal Digital Assistant), PSP (Play station portable), MP3 or MP4.It is characterized in that: this mobile terminal is provided with pressure alarm system, and described pressure alarm system is as implementing as described in one.
The pressure transducer 101 of described pressure alarm system, described pressure transducer 101 can be by welding, bonding, clamping or SMT on mainboard 400.
Described mobile terminal also is provided with pressure transmission part 102; Described pressure transmission part 102 is arranged on the front housing 500 or back housing 500 of mobile terminal, and matches with the position of described pressure transducer 101.As shown in Figure 3, after front, back housing 500 are completed and built in the mobile terminal assembling, can have a gap between the foil gauge of described pressure transmission part 102 and pressure transducer 101, also can both contact but not have pressure on described foil gauge.As shown in Figure 4, when mobile terminal was received extruding, housing 500 can have deformation, thereby exert pressure to described foil gauge, cause pressure transducer 101 output pressure detection signals, thereby play the effect of warning, its principle elaborates in embodiment one, no longer gives unnecessary details here.
The quantity of described pressure transducer 101 is at least 1, and a plurality of pressure transducers 101 also can be set
The quantity of described pressure transmission part 102 can be consistent with the quantity of described pressure transducer 101, also can several pressure transducers 101 and 1 pressure transmission part 102 be used in conjunction with.
Described pressure transmission part 102 is Split type structure with housing 500, can be fixed on housing 500 by welding, mode bonding or clamping; Described pressure transmission part 102 can be also integrative-structure with housing 500.
The mobile terminal that the present embodiment provides can also comprise a supporting construction, and described pressure transducer 101 can be by welding, bonding, clamping or SMT on described supporting construction.Described supporting construction can be arranged on the circuit board on mainboard 400 or be arranged on radome on mainboard 400, can be also to be exclusively used in fixing described pressure transducer 101 and the bracing frame that arranges.
Because the edge of housing 500 has supporting construction, mainboard 400 corner locations have screw housing 500 are also had fixing effect, and therefore when mobile terminal is subject to ambient pressure, the position that has broken fastoperation most is normally near the position of mobile terminal centre.Therefore, described pressure transmission part 102 should be arranged on the centre position near back housing 500 inwalls as much as possible, and pressure transducer 101 also is arranged on accordingly near the position in the middle of mainboard 400.Certainly, the mobile terminal structure design is very complicated, be designed into the impact of the many factors such as electron device, trace arrangements, when pressure transmission part 102 is arranged on submarginal position, can be by regulating gap between described pressure transducer 101 and described pressure transmission part 102 and the size of threshold value M0, reached and the purpose of alarm.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (15)
1. a pressure alarm system, is characterized in that: comprise pressure transducer (101), data processing module (200) and warning execution module (300); The input end of described data processing module (200) is connected with the output terminal circuitry phase of described pressure transducer (101); The output terminal of described data processing module (200) is connected with the input end circuitry phase of described warning execution module (300).
2. pressure alarm system as claimed in claim 1, it is characterized in that: described pressure transducer (101) is piezoresistive pressure sensor (101), and described pressure transducer (101) comprises strain circuit and amplifying circuit.
3. pressure alarm system as claimed in claim 2, it is characterized in that: described strain circuit comprises the Wheatstone bridge (10) that contains at least a voltage dependent resistor, first port (11) of described Wheatstone bridge (10) is power port, is used for being connected with the Power Management Unit of mobile terminal; The 3rd port (13) of described Wheatstone bridge (10) is grounding ports, is used for being connected with the ground of mobile terminal; The second port (12) and the 4th port (14) of described Wheatstone bridge (10) are output port, are used for being connected with described strain circuit; Connect an electric capacity (C) between described the 4th port (14) and the 3rd port (13).
4. pressure alarm system as claimed in claim 3, it is characterized in that: described amplifying circuit comprises an amplifier (20) and four resistance, and the electrode input end of described amplifier (20) is connected on the 4th port (14) of described Wheatstone bridge (10) by the first resistance (R1) and a variohm (R5); The negative input of described amplifier (20) is connected on second port (12) of Wheatstone bridge (10) by the second resistance (R2); The electrode input end of described amplifier (20) is also by the 3rd resistance (R3) ground connection; Be connected in series the 4th resistance (R4) between the output terminal of described amplifying circuit and negative input.
5. pressure alarm system as claimed in claim 3, it is characterized in that: described Wheatstone bridge comprises 4 bridge resistors, wherein two bridge resistors are voltage dependent resistor.
6. pressure alarm system as claimed in claim 5, it is characterized in that: described data processing module (200) comprises AD conversion unit (201) and micro-control unit (202); The input end of described AD conversion unit (201) is connected with the output terminal circuitry phase of described pressure transducer (101) and output terminal is connected with the input end circuitry phase of described micro-control unit (202).
7. pressure alarm system as claimed in claim 6, it is characterized in that: the threshold value M0 that described micro-control unit (202) has the output valve M of its AD conversion unit that receives (201) and its inner setting compares, the function that transmits control signal when described output valve M is greater than or equal to threshold value M0.
8. mobile terminal, it is characterized in that: be provided with pressure alarm system as described in any one in claim 1 to 7, described pressure transducer (101) is arranged on mainboard (400).
9. mobile terminal as claimed in claim 8, is characterized in that: also be provided with pressure transmission part (102); Described pressure transmission part (102) is arranged on the front housing (500) or back housing (500) of mobile terminal, and matches with the position of described pressure transducer (101).
10. mobile terminal as claimed in claim 9 is characterized in that: described pressure transmission part (102) is Split type structure or integrative-structure with housing (500).
11. mobile terminal as claimed in claim 9 is characterized in that: the quantity of described pressure transducer (101) is at least 1; The quantity of described pressure transmission part (102) can be consistent with the quantity of described pressure transducer (101).
12. mobile terminal as claimed in claim 9 is characterized in that: several pressure transducers (101) are used in conjunction with 1 pressure transmission part (102).
13. mobile terminal as described in any one in claim 8 to 12 is characterized in that: also comprise a supporting construction, described pressure transducer (101) is fixed on described supporting construction; Described supporting construction is arranged on circuit board, the radome on mainboard (400) or is exclusively used in the bracing frame of fixing described pressure transducer (101).
14. mobile terminal as described in any one in claim 8 to 12 is characterized in that: pressure transducer (101) is connected with described data processing module (200) circuitry phase by motherboard circuit or flexible circuit board.
15. mobile terminal as described in any one in claim 8 to 12 is characterized in that: described pressure transmission part (102) is arranged on the centre position near housing (500) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695834 CN202947823U (en) | 2012-12-14 | 2012-12-14 | Pressure alarm system and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695834 CN202947823U (en) | 2012-12-14 | 2012-12-14 | Pressure alarm system and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202947823U true CN202947823U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220695834 Expired - Lifetime CN202947823U (en) | 2012-12-14 | 2012-12-14 | Pressure alarm system and mobile terminal |
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| Country | Link |
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| CN (1) | CN202947823U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017947A (en) * | 2012-12-14 | 2013-04-03 | 上海华勤通讯技术有限公司 | Pressure alarm system and mobile terminal |
| CN110942573A (en) * | 2020-01-02 | 2020-03-31 | 东南大学 | Self-detection type artificial dental implant alarm |
| CN114061798A (en) * | 2021-11-15 | 2022-02-18 | 南昌黑鲨科技有限公司 | Pressure sensor and system of intelligent terminal |
-
2012
- 2012-12-14 CN CN 201220695834 patent/CN202947823U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017947A (en) * | 2012-12-14 | 2013-04-03 | 上海华勤通讯技术有限公司 | Pressure alarm system and mobile terminal |
| CN110942573A (en) * | 2020-01-02 | 2020-03-31 | 东南大学 | Self-detection type artificial dental implant alarm |
| CN110942573B (en) * | 2020-01-02 | 2022-01-25 | 东南大学 | Self-detection type artificial dental implant alarm |
| CN114061798A (en) * | 2021-11-15 | 2022-02-18 | 南昌黑鲨科技有限公司 | Pressure sensor and system of intelligent terminal |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201203 Building 1, 399 Zhangyuan Road, Zhangjiang, Pudong New Area, Shanghai Patentee after: Huaqin Technology Co.,Ltd. Address before: 201203 Building 1, 399 Zhangyuan Road, Zhangjiang, Pudong New Area, Shanghai Patentee before: Huaqin Technology Co.,Ltd. Address after: 201203 Building 1, 399 Zhangyuan Road, Zhangjiang, Pudong New Area, Shanghai Patentee after: HUAQIN TELECOM TECHNOLOGY Co.,Ltd. Address before: 201203 Building 1, 399 Zhangyuan Road, Zhangjiang, Pudong New Area, Shanghai Patentee before: SHANGHAI HUAQIN TELECOM TECHNOLOGY Co.,Ltd. Address after: 201203 Building 1, 399 Zhangyuan Road, Zhangjiang, Pudong New Area, Shanghai Patentee after: Huaqin Technology Co.,Ltd. Address before: 201203 Building 1, 399 Zhangyuan Road, Zhangjiang, Pudong New Area, Shanghai Patentee before: HUAQIN TELECOM TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |