CN205758570U - Dynamic glucose testing circuit based on BLE - Google Patents
Dynamic glucose testing circuit based on BLE Download PDFInfo
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- CN205758570U CN205758570U CN201620016348.4U CN201620016348U CN205758570U CN 205758570 U CN205758570 U CN 205758570U CN 201620016348 U CN201620016348 U CN 201620016348U CN 205758570 U CN205758570 U CN 205758570U
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Abstract
This utility model devises a kind of dynamic glucose testing circuit based on BLE bluetooth, and circuit design includes BLE microprocessor, I/V conversion module, button and indicator light circuit, voltage control circuit, button cell power supply, micro-fluidic blood-sugar detection sensor.This circuit is for dynamically detecting blood glucose, and signal is transferred to module to BLE microprocessor by micro-fluidic blood-sugar detection sensor through I/V, through process, then blood glucose value is sent to by BLE bluetooth the equipment of band bluetooth wirelessly.
Description
[technical field]
This utility model relates to blood sugar test technical field, particularly to dynamic glucose testing circuit based on BLE.
[background technology]
The diabetics of China is numerous, many patients belong to severe diabetes, need frequent insulin injection, and during insulin injection, the time selecting injection is most important, reaches certain threshold value at blood glucose, and starting insulin injection is optimal opportunity, how to know this best opportunity, Dynamic Blood Glucose Monitoring can reach to realize this target.
But investigation finds, there is power consumption higher in the detection control circuit of current dynamic glucose, at most wear 3-5 days and just quit work because of needs charging, and the charging interval is typically necessary more than 2 hours, can not the surveying of data during this period of time, the optimal injection time of insulin may be missed.When again wear measure time, again exist need be again coupled to wait series of complex operation.
Therefore, it can find the power consumption effectively reducing dynamic glucose testing circuit, and testing circuit is the most integrated, reducing physical size and the weight of testing circuit, design is more suitable for the dynamic glucose testing circuit that blood glucose patient uses.
Through research, the applicant devises dynamic glucose testing circuit based on BLE, and the acp chip of bluetooth BLE is CC2540, and it is integrated with low-power consumption microcontroller 8051, also has the AD converter of 12 and the SRAM of Flash and 8K of 256K.Because of its ultralow power consumption and highly integrated, our design requirement can be met.
[summary of the invention]
The defect that this utility model exists for above-mentioned prior art, devises dynamic glucose testing circuit based on BLE.Technology of the present utility model can well realize the dynamic glucose testing circuit of ultralow power consumption and Highgrade integration, makes blood sugar test circuit module more be miniaturized, is more suitable for patient and wears use.
For realizing super low-power consumption dynamic glucose testing circuit, the utility model proposes dynamic glucose testing circuit based on BLE, including BLE microprocessor, button cell power supply, button and indicator light circuit, Control of Voltage, I/V conversion module, micro-fluidic blood-sugar detection sensor, the acquisition of blood glucose value is the glucose in the tissue fluid of micro-fluidic blood-sugar detection sensor detection human body, through electrochemical reaction, produce weak current and enter I/V conversion module, convert the current into voltage at this and be amplified.BLE microprocessor utilizes its AD to sample it, and converts through algorithm, calculates blood glucose value, then by this value through the Bluetooth function of BLE, is transferred to other bluetooth equipments and shows and analyze further.
As preferably, testing circuit have also been devised voltage control circuit module.
As preferably, testing circuit have also been devised button and indicator light circuit.
As preferably, testing circuit also includes button cell power supply.
The beneficial effects of the utility model: this utility model uses BLE bluetooth module, is the feature of its super low-power consumption and Highgrade integration, thus realizes the super low-power consumption feature of dynamic glucose testing circuit, also achieves the micro-and light feature of its size and weight simultaneously.It addition, sensor uses the sensor that micro-fluidic chip is blood sugar test of Design and Machining, embodying again the feature of its Wicresoft detection, this circuit can be applicable to the dynamic glucose testing circuit of super low-power consumption, high integration.
[accompanying drawing explanation]
Fig. 1 is dynamic glucose testing circuit structure chart based on BLE
Fig. 2 is BLE microprocessor module figure
Fig. 3 is that I/V converts and amplification circuit diagram
Fig. 4 is voltage control circuit figure
Fig. 5 is overall BLE dynamic glucose testing circuit figure
[detailed description of the invention]
As shown in Figure 1, should mainly include BLE microprocessor by dynamic glucose testing circuit based on BLE, button and indicator light circuit, button cell circuit, Control of Voltage, I/V conversion module, micro-fluidic blood-sugar detection sensor, the signal of testing circuit derives from micro-fluidic blood-sugar detection sensor, tissue fluid in micro-fluidic chip and glucoseoxidase generation electrochemical reaction, produce low current signal, signal carries out electric current through I/V conversion module and is converted to voltage signal, then signal is amplified, utilize the A/D module that BLE is integrated, voltage signal is sampled, by being calculated corresponding blood glucose value.Blood glucose value is passed through the Bluetooth function of BLE module again, is sent to other equipment with bluetooth and carries out showing and analyzing.Button cell power supply powers to whole circuit, and does not has other accessory power supply, by controlling to cease between BLE work, reaches super low-power consumption, can dynamic acquisition blood glucose numerical value about 30 days continuously.The size miniaturization of whole design circuit board, size Control is in the size range of 20mm x20mm.
Fig. 2 is BLE acp chip CC2540 module circuit diagram, modular circuit is because of integrated low-power consumption 8051 single-chip microcomputer and bluetooth, for dynamic glucose testing circuit, voltage signal can be acquired by AD, through appropriate algorithm, calculate blood glucose value, and value is wirelessly transferred and stores, CC2540 carries the Flash of 256k, data can be stored, code can also be stored, BLE protocol stack has carried snv and has managed code, read function osal_snv_read, write function osal_snv_write data and have a unique id, snv is by the data in this unique id management Flash.BLE microprocessor is connected with button and indicator light circuit, by a button, coordinates three-color LED display lamp, utilization state machine principle, realize the multiple operation of testing circuit, pressed by length or short pressing coordinates the color of display lamp to change or the state such as quick flashing, slow flash, point out current operational motion.BLE microprocessor is connected with Control of Voltage, by the I/O port of BLE, exports low and high level, so that the voltage of voltage control circuit switches over, completes the initial condition to sensor test side electrochemical reaction.
Fig. 3 is I/V conversion circuit, and current signal is converted into voltage signal by this circuit, and is amplified by voltage signal, A/D module for BLE microprocessor is sampled, this circuit uses MAX418 chip, can regulate resistance realize different conversion voltage ranges according to different demands.
Fig. 4 is voltage control circuit, this main circuit BLE to be passed through microprocessor passes through P1.6 and P1.1 pin, export different level, thus control the on off state of MAX4741 chip, realizing exporting different voltage at sen2 with sen3 end, three electrodes for micro-fluidic blood-sugar detection sensor meet different voltage, and polarization sensor is electrochemically reacted, thus with the glucose response in tissue fluid, produce faint electric current.Micro-fluidic blood glucose sensor is the sensor with three electrodes, more information about micro-fluidic blood-sugar detection sensor, explanation in the patent of micro-fluidic blood glucose sensor.
It should be noted that above example is only in order to illustrate the explanation of this utility model BLE dynamic glucose testing circuit rather than to restriction of the present utility model.It will be understood by those within the art that, can modify the technical scheme of the design or equivalent, without deviating from the spirit and scope of technical solution of the present invention, it all should be contained in the middle of scope of the presently claimed invention.
Claims (7)
1. dynamic glucose testing circuit based on BLE, it is characterized in that: include BLE microprocessor (4), I/V conversion module (2), micro-fluidic blood-sugar detection sensor (1), Control of Voltage (6), button cell power supply (5), button and indicator light circuit (3), BLE microprocessor (4) is connected with Control of Voltage (6).
Dynamic glucose testing circuit based on BLE the most according to claim 1, it is characterized in that: BLE microprocessor (4) and button and indicator light circuit (3) and button cell circuit are connected (5), realizing button operation and instruction respectively, button cell is powered.
Dynamic glucose testing circuit based on BLE the most according to claim 1, it is characterised in that: BLE microprocessor (4) is connected with I/V conversion module (2), it is achieved the collection to signal.
Dynamic glucose testing circuit based on BLE the most according to claim 1, it is characterized in that: I/V conversion module (2) is connected with micro-fluidic blood-sugar detection sensor (1), the electric current that dynamically detection blood glucose electrochemical reaction produces, it is transferred to I/V conversion module, is converted into voltage and amplifies voltage for AD collection.
5. according to the dynamic glucose testing circuit based on BLE in any of the one of claim 1-4, it is characterized in that: button cell power supply (5) is powered to whole circuit, and there is no other accessory power supply, by controlling to cease between BLE work, reach super low-power consumption, can dynamic acquisition blood glucose numerical value about 30 days continuously.
6. according to the dynamic glucose testing circuit based on BLE in any of the one of claim 1-4, it is characterized in that: button and indicator light circuit (3), a button, coordinate three-color LED display lamp, utilization state machine principle, it is achieved the multiple operation of testing circuit.
7. according to the dynamic glucose testing circuit based on BLE in any of the one of claim 1-4, it is characterised in that: the size miniaturization of whole design circuit board, it can be controlled in the size range of 20mmx20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016348.4U CN205758570U (en) | 2016-01-08 | 2016-01-08 | Dynamic glucose testing circuit based on BLE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016348.4U CN205758570U (en) | 2016-01-08 | 2016-01-08 | Dynamic glucose testing circuit based on BLE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205758570U true CN205758570U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620016348.4U Active CN205758570U (en) | 2016-01-08 | 2016-01-08 | Dynamic glucose testing circuit based on BLE |
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| Country | Link |
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| CN (1) | CN205758570U (en) |
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2016
- 2016-01-08 CN CN201620016348.4U patent/CN205758570U/en active Active
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