CN202394251U - Wireless transmission label wrist band device capable of preventing from releasing - Google Patents
Wireless transmission label wrist band device capable of preventing from releasing Download PDFInfo
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- CN202394251U CN202394251U CN2011202983860U CN201120298386U CN202394251U CN 202394251 U CN202394251 U CN 202394251U CN 2011202983860 U CN2011202983860 U CN 2011202983860U CN 201120298386 U CN201120298386 U CN 201120298386U CN 202394251 U CN202394251 U CN 202394251U
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- wrist strap
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Abstract
The utility model provides a wireless transmission label wrist band device capable of preventing from releasing. The wireless transmission label wrist band device includes a plastic wrist band body provided with a capacitance sensor, a control circuit, a battery and an RF (Radio Frequency) module. The capacitance of the capacitance sensor varies according to the fact that whether the wrist band is on the wrist of a user or not. The control circuit detects that whether the capacitance change of the capacitance sensor is larger than a predetermined threshold value or not, judges that whether the wrist band is released from the wrist of the user or not, and sends a detection result through the RF module. The wireless transmission label wrist band device capable of preventing from releasing provided by the utility model can prevent the wrist band from releasing from the wrist of the user.
Description
Technical field
The application relates to a kind of slip-off preventing wireless transmission tag wrist strap device, relates in particular to the anti-drop device of the wireless transmission tag wrist strap that ewborn infant uses in hospital.
Background technology
Ewborn infant is stolen in hospital, is perhaps happened occasionally by the wrong accident of neck, and this type of incident is often given hospital, and victim and relevant family bring loss difficult to the appraisal.At present, the general date of birth that adopts the mode of writing baby's mark or wrist strap to identify the baby of domestic hospital, body weight, mother, identifying informations such as bed label.But only lean on the wrist strap of such label type, can not guarantee that wrist strap is destroyed by malevolent people, alter or change, perhaps taking by mistake by carelessness.In addition, because the information on the label is complicated and the operating mistake that possibly exist, the problem that can not avoid the baby to take by mistake takes place.
In view of these problems, some babies based on RFID technology wrist strap of guarding against theft has been proposed.At the wrist strap of the additional radio frequency chip of putting on hand of baby, when baby harness wrist strap and embraced ward or obstetrics without approval,, electronic system triggers alerting signal thereby can detecting baby's identifying information.But such technology can not prevent that still malevolent people from taking off wrist strap or destroy, thereby causes monitoring to be lost efficacy.In addition, become a mother when perhaps medical personnel change clothes or detect the baby, may cause coming off of wrist strap, thus the forfeiture anti-theft feature.
In view of this, need be a kind of complete, baby's antitheft efficiently/prevent taking system by mistake can farthest suppress the generation of the problems referred to above.
Summary of the invention
For addressing the above problem, one side of the present invention provides a kind of slip-off preventing wireless transmission tag wrist strap device, comprises a battery and a RF module, and this slip-off preventing wireless transmission tag wrist strap device also comprises:
One capacitive transducer, whether said capacitive transducer capacitance changes the user according to wrist strap on hand;
Whether one control circuit, said control circuit detect the appearance value variation of said capacitive transducer greater than a preset thresholding, and judge according to the result who detects whether said wrist strap comes off from said user on hand, and send testing result through said RF module.
A kind of slip-off preventing wireless transmission tag wrist strap device also is provided, comprises a plastic cement wrist strap body, a battery and a RF module, said slip-off preventing wireless transmission tag wrist strap device also comprises:
One capacitive transducer, whether said capacitive transducer capacitance changes the user according to wrist strap on hand;
One temperature sensor, said temperature sensor detect the inboard temperature of wrist strap;
One control circuit; Whether the appearance value that said control circuit detects said capacitive transducer changes and whether to depart from body temperature greater than a preset thresholding and the temperature that detects said temperature sensor and reach a preset thresholding; And according to the testing result of said capacitive transducer with to the testing result of said temperature sensor; Judge whether said wrist strap comes off from said user on hand, and send testing result through said RF module.
A kind of alarm method that prevents that the wireless transmission tag wrist strap from coming off is provided on the other hand; Said wireless transmission tag wrist strap comprises a battery, a RF module, a capacitive transducer and a control circuit; Whether said capacitive transducer capacitance changes the user according to wrist strap on hand; It is characterized in that said alarm method may further comprise the steps:
Whether the appearance value that detects said capacitive transducer through said control circuit changes greater than a preset thresholding, if then be judged as said wrist strap and come off on hand from said user; If not, then being judged as said wrist strap does not come off from said user on hand;
Send testing result through said RF module.
A kind of alarm method that prevents that the wireless transmission tag wrist strap from coming off also is provided; Said wireless transmission tag wrist strap comprises a battery, a RF module, a capacitive transducer, a temperature sensor and a control circuit; Whether said capacitive transducer capacitance changes the user according to wrist strap on hand; Said temperature sensor detects the inboard temperature of wrist strap, it is characterized in that, said method comprising the steps of:
The appearance value that detects said capacitive transducer through said control circuit changes whether preset thresholding greater than one; And whether the temperature that detects said temperature sensor simultaneously departs from body temperature and reaches a preset thresholding; If all be then to be judged as said wrist strap and to come off on hand from said user; If all deny then to be judged as said wrist strap and not come off on hand from said user;
Send testing result through said RF module.
Description of drawings
Fig. 1 is the side view of the structural drawing of first embodiment of the present invention wrist strap
Fig. 2 is the vertical view of the structural drawing of first embodiment of the present invention wrist strap
Fig. 3 is the theory diagram of central control system of the present invention
Fig. 4 is a system works flow process block diagram of the present invention
Fig. 5 is RF layer data format sample figure of the present invention
Fig. 6 is the realization block diagram of control circuit of the present invention and capacitive detection circuit
Fig. 7 is the side view of the structural drawing of second embodiment of the present invention wrist strap
Fig. 8 is the vertical view of the structural drawing of second embodiment of the present invention wrist strap
Fig. 9 is the circuit diagram of temperature sensor of the present invention
Embodiment
First embodiment:
Fig. 1 and Fig. 2 have shown the formation of wrist strap of the present invention, and wrist strap is by plastic cement wrist strap body 101, capacitive transducer 102, and control circuit 103, battery 104 and RF part 105 constitute, and 108 is housing, and 109 is the circuit pcb board.
Plastic cement wrist strap body 101 can select for use soft flaky materials such as pliable and tough nontoxic plastics, rubber, plastic composite, leather, waterproof paper to process.Consider that infant skin is responsive, select non-toxic polyvinyl chloride, tygon for use, gather comparatively ideal of the third ethene thin slice.Plastic cement wrist strap body 101 forms annular casing on baby's wrist or ankle through hasp, and carries out the clasp choice of location according to baby's the wrist or the diameter of ankle, with not can from the baby on hand or the pin elasticity that comes off be advisable.Some zone is the tag slot on plastic cement wrist strap body 101 and the housing 108, is used to write, and prints or stickup mother name bar code, body weight, bed label, baby's relevant informations such as date of birth.
RF partly is the private radio transceiver.Said wireless transceiver can be for following the RF receiving and transmission module of ZIGBEE agreement, for example based on the zigbee communication protocol module of the CC2430/CC2431 SOC of TI company.The ZigBeeSOC of Texas Instrument (TI) radio frequency chip CC2430-F128, integrated high-performance 8051 kernels, ADC, USART etc. on the sheet support the ZigBee protocol stack.The main radio frequency parameter of CC2430 transceiver is:
Operational frequency bandwidth is 2.400～2.4835GHz
Data rate reaches 250kbps, and spreading rate reaches 2Mchips/s
Output power control able to programme
Low-power consumption: RX:27mA, TX:25mA
The RF part can partly be carried out communication through various interface and MCU control circuit, and typical the realization comprises that the RS232 serial line interface or the GPIO interface that use MCU carry out data communication.
RF part also can realize with the radio frequency chip of only supporting Physical layer, the CC2511 family chip of TI company for example, and in this case, all communication protocol stacks all need MCU to handle with relevant handling procedure.
Fig. 3 representes to be used for data processing of the present invention and warning message produces and the formation of the general-purpose computing system of record.This computer system comprises PC (personal computer) 301, center RF node 302, RS232 serial line connection 303.PC 301 is for having ordinary individual's computer of display, audio amplifier, keyboard and mouse, and wherein audio amplifier and display are used for exporting and display alarm information.Center RF node 302 is the wireless data transceiving nodes that have the zigbee transceiver, is used to receive data message or the warning message from wrist strap, and through RS232 serial line connection 303 data is sent to PC 301.Special, PC 301 can be connected to the database of medical system or the network platform of relevant departments through network, data such as record warning message or system state.
It is as shown in Figure 4 to take its function realization flow of system by mistake based on antitheft of the present invention/anti-.
In the step 401, medical personnel are with for mother and baby respectively to prevent taking by mistake/guarding against theft wrist strap, saidly prevent that taking/guard against theft wrist strap by mistake begins the control work flows journey in the moment of putting on.The joint of said antitheft wrist strap has switch module, and switch module constitutes the system power supply of antitheft wrist strap, and after wrist strap was buckled, switch module promptly was coupled, thus circuit turn-on, and the MCU electrification reset gets into duty, executive routine.
In the step 402, the said anti-wrist strap transmitting supervisory information on the given time interval of taking by mistake/guard against theft.Said monitoring information comprise this wrist strap identification id, work at present monitor state, temperature, whether be information such as alerting signal and dump energy.
In the step 403, a plurality of receiving traps that are distributed in the medical care place receive the monitoring information that wrist strap sends.
In the step 404, receiving trap judges whether have wrist strap to send warning message according to the content of monitoring information, if report to the police, confirms ID and mother's name of warning, reminds medical personnel in time to handle.
Fig. 5 is a kind of possible data layout of monitor message of the present invention.Unique label of the ID Wrist band with bar code of 32bit, the temporal information of 32bit is represented the generation time of this monitor message, the length that the length mark of 8bit indicates current data message is N byte, the N byte information field that the back indicates immediately following length mark.
Fig. 6 is the concrete realization block diagram and the annexation figure of control circuit 103 of the present invention and capacitive detection circuit.Control circuit mainly contains MCU 601, capacitive detection circuit 602.Capacitive detection circuit 602 principle of work are: capacitive detection circuit output drive signal is given capacitive transducer, and reads the voltage amplitude of the variation that produces on the electric capacity by ADC, converts digital signal to and compares.If voltage has produced obvious variation, show that then the value of electric capacity has produced change.Capacitive detection circuit 602 can realize with the capacitance detecting chip of commercialization, like AD7156 chip of ANALOG company etc.The circuit of Fig. 6 has shown a kind of constituted mode of capacitive detection circuit of the present invention.
AD7156 is a kind of quick response high-performance capacitor digital converter that Analog Device company produces, and can the capacitance variations that capacitive transducer obtains be directly changed into data output.AD7156 adopts electric capacity digital quantizer (CDC) technology of ADI company; This technology compile with the real sensor interface procedure in the multiple featured function that plays an important role, like high input sensitivity, higher input parasitic earthing capacitance and leakage current tolerance limit.Its integrated adaptive formula fault value-based algorithm can be to causing any variation that sensor capacitance takes place to compensate because of environmental factor (like humidity and temperature) or insulating material are aging.Under the default situations, AD7156 adopts fixedly to power on and is provided with the stand-alone mode operation, and shows testing result with the output of two-way numeral.In addition, AD7156 also can be connected with microcontroller through serial line interface, can be provided with through User Defined internal register is programmed, and data and status information then can read from these parts.Therefore, in the present invention, adopt the I2C interface to link to each other with MCU, MCU is through operation and the data acquisition of I2C circuit control AD7156.
The MCU treatment scheme is described below:
Under the 1 step 701 appearance state, the shape when the wrist strap ring is become actual the use, MCU starts the capacitance detecting program, detects the capacitance under the light condition, and the inside flash circuit of MCU is advanced in storage.Detect and accomplish, system gets into off-position.
When 2 steps 702 are with wrist strap as baby/mother, power turn-on, MCU starts, and starts the capacitance detecting program, and the capacitance after the wrist is put in detection, and the inside ram of MCU is advanced in storage.Detected value can be represented through the mean value of the detected value of (for example 5 times) repeatedly.
Under 3 step 703 normal operation; MCU gets into dormant state; Only externally in (for example regularly communicate by letter with mother or watch-dog and detect capacitance variations) time, takes place and waken up in interrupt event, and AD7156 keeps duty, lasting detection changes in capacitance situation.
4 steps 704 surpass threshold value (for example, threshold setting is capacitance difference half the under capacitance and the normal condition under the light condition) when capacitance change, and AD7156 generation capacitance variations indicator signal is waken MCU up and handled.
5 step 705MCU detect the capacitance (for example sample and average for 5 times) after stablizing once more, if current capacitance obviously is partial to the capacitance under the light condition, think that then wrist strap comes off, and trigger alert program, transmit alerting signal.
Embodiment 2
The wrist strap of embodiment 2 such as Fig. 7 and shown in Figure 8.Wrist strap is by plastic cement wrist strap body 201, capacitive transducer 202, control circuit 203; Battery 204; RF part 205 and temperature sensor 210 constitute, and 206 is the connecting line of capacitive transducer a to control circuit, and 207 is the connecting line of another root capacitive transducer to control circuit; 208 is housing, and 209 is the circuit pcb board.Than the realization of embodiment one, circuit part has increased a temperature sensor 210, is used to monitor the inboard variation of temperature of wrist strap.
Because capacitive transducer is affected by environment bigger, possibly there are some inaccurate wrong report situation, therefore, added temperature sensor circuit 210 in the testing circuit of embodiment 2.Temperature sensor 210 is surveyed skin temperature in the end detection ring through being embedded in wrist strap ring temperature inside sensor chip.
Fig. 9 has shown the circuit diagram of temperature sensor.Temperature sensor can be made up of a slice LM94022 integrated temperature sensor chip.The equal ground connection of the GS0 of LM94022 and GS1, sensitivity are selected, and the ADC input port of output termination MCU, the inner ADC of MCU carry out digitized processing to the simulation temperature tolerance of input and convert digital signal to offering MCU and carrying out the temperature judgement.It is inboard that the contact of temperature sensor connects wrist strap, judges whether wrist strap temperature inboard and that skin contact part divides departs from baby's body temperature and reach a preset thresholding.
The MCU treatment scheme is described below:
Under the step 801 appearance state, the shape when the wrist strap ring is become actual the use, MCU starts the capacitance detecting program, detects the capacitance under the light condition, and the inside flash circuit of MCU is advanced in storage.Detect and accomplish, system gets into off-position.
When step 802 was with wrist strap as baby/mother, power turn-on, MCU started, and started the capacitance detecting program, detected the capacitance of putting on after the wrist once more, and the inside ram of MCU is advanced in storage.Detected value can be represented through the mean value of the detected value of (for example 5 times) repeatedly.
Under step 803 normal operation; MCU gets into dormant state; Only externally in (for example regularly communicate by letter with mother or watch-dog and detect capacitance variations) time, takes place and waken up in interrupt event, and AD7156 keeps duty, lasting detection changes in capacitance situation.
Step 804 surpasses threshold value (threshold setting be under the light condition under capacitance and the normal condition capacitance difference half the) when capacitance change, and AD7156 generation capacitance variations indicator signal is waken MCU up and handled.
Step 805MCU detects the capacitance (for example sample and average for 5 times) after stablizing once more, if current capacitance obviously is partial to the capacitance under the light condition, then triggers temperature sensor and carries out temperature detection.
If the inboard temperature departure body temperature of the wrist strap that step 806 is obtained reaches a preset thresholding, think that then wrist strap comes off, trigger alert event.
Among the embodiment 2,, can significantly improve the warning accuracy rate that comes off through combining the detected value of temperature sensor.
More than described a plurality of embodiment of the present invention, still, can make multiple modification said a plurality of embodiment.For example, this device can be used for the management to other kinds patient, or implements the crowd's of monitoring management for needs, or is used to prevent that children loss or quilt from being swindled.In addition, described capacitive detection circuit also can use other chip or discrete circuit to realize.Therefore, should be appreciated that, obviously be easy to the present invention is made like this and such modification, promptly do not departing from the present invention's spirit and setting up under the prerequisite of claims scope and can make various variations, remodeling and revising for those skilled in the art.
Claims (6)
1. a slip-off preventing wireless transmission tag wrist strap device comprises a wrist strap body, is provided with a battery and a RF module in the said wrist strap body, it is characterized in that, also is provided with in the said wrist strap body:
One capacitive transducer, whether said capacitive sensing device capacitance changes the user according to wrist strap on hand;
Whether one control circuit, said control circuit detect the appearance value variation of said capacitive transducer greater than a preset thresholding, and judge according to the result who detects whether said wrist strap comes off from said user on hand, and send testing result through said RF module.
2. slip-off preventing wireless transmission tag wrist strap device as claimed in claim 1 is characterized in that, also is provided with a temperature sensor in the said wrist strap body, and said temperature sensor detects the inboard temperature of wrist strap,
The detection content of said control circuit with judge that content is replaced with: whether the appearance value that detects said capacitive transducer changes and whether to depart from body temperature greater than a preset thresholding and the temperature that detects said temperature sensor and reach one and preset thresholding; And according to the testing result of said capacitive transducer with to the testing result of said temperature sensor; Judge whether said wrist strap comes off from said user on hand, and send testing result through said RF module.
3. according to claim 1 or claim 2 slip-off preventing wireless transmission tag wrist strap device is characterized in that said capacitive transducer is to constitute by being embedded in intrinsic 2 flexible metal films of wrist strap.
4. slip-off preventing wireless transmission tag wrist strap device as claimed in claim 1 is characterized in that said control circuit comprises a MCU and a capacitance detector, and said MCU controls the operation and the data acquisition of said capacitance detector.
5. slip-off preventing wireless transmission tag wrist strap device as claimed in claim 2; It is characterized in that; Said control circuit comprises a MCU, a capacitance detector and a Temperature Detector, and said MCU controls the operation and the data acquisition of said capacitance detector and Temperature Detector.
6. according to claim 1 or claim 2 slip-off preventing wireless transmission tag wrist strap device is characterized in that, said RF module be by one follow the zigbee agreement RF receiving and transmission module constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202983860U CN202394251U (en) | 2011-08-17 | 2011-08-17 | Wireless transmission label wrist band device capable of preventing from releasing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202983860U CN202394251U (en) | 2011-08-17 | 2011-08-17 | Wireless transmission label wrist band device capable of preventing from releasing |
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| Publication Number | Publication Date |
|---|---|
| CN202394251U true CN202394251U (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202983860U Expired - Lifetime CN202394251U (en) | 2011-08-17 | 2011-08-17 | Wireless transmission label wrist band device capable of preventing from releasing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680054A (en) * | 2013-09-02 | 2014-03-26 | 杭州师范大学 | A baby body surface sensing method and an apparatus thereof |
| WO2016049859A1 (en) * | 2014-09-30 | 2016-04-07 | 华为技术有限公司 | Wearing state monitoring method and wearable device |
-
2011
- 2011-08-17 CN CN2011202983860U patent/CN202394251U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680054A (en) * | 2013-09-02 | 2014-03-26 | 杭州师范大学 | A baby body surface sensing method and an apparatus thereof |
| CN103680054B (en) * | 2013-09-02 | 2016-04-20 | 杭州师范大学 | A kind of baby's body surface method for sensing and device thereof |
| WO2016049859A1 (en) * | 2014-09-30 | 2016-04-07 | 华为技术有限公司 | Wearing state monitoring method and wearable device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MIAO PENG XU FEI Effective date: 20140911 Owner name: LI YU Free format text: FORMER OWNER: NANJING HUYING ELECTRONIC TECHNOLOGY CO., LTD. Effective date: 20140911 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210002 NANJING, JIANGSU PROVINCE TO: 210012 NANJING, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140911 Address after: 210012 No. 44 East Village, Nanjing City, Jiangsu province 9-101 Patentee after: Li Yu Patentee after: Miao Peng Patentee after: Xu Fei Address before: Xinhua Road along the Yangtze River Industrial Development Zone in Nanjing City, Jiangsu province 210002 No. 243 branch No. 3 building 107 Patentee before: Nanjing Huying Electronic Technology Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191015 Address after: Room 1e-174, building 3, No.108 Jianxing Road, Jianshe Town, Chongming District, Shanghai 202150 (Shanghai Jianshe economic community) Patentee after: Shanghai muchengcan Technology Center Address before: 210012 No. 44 East Village, Nanjing City, Jiangsu province 9-101 Co-patentee before: Miao Peng Patentee before: Li Yu Co-patentee before: Xu Fei |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
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| CX01 | Expiry of patent term |