CN103545915B - A kind of power-economizing method for microscope experiment system handheld operating means - Google Patents

Abstract

The invention discloses a kind of power-economizing method for microscope experiment system handheld operating means, comprise low pressure drop, non-jitter power supply switch circuit auto switching electric source adapter and powered battery; The detection method of low-power consumption battery voltage detection circuit; And the operation method that the shallow sleep of microprocessor, deep sleep combine.The present invention, on the basis meeting microscope experiment operating function demand, by hardware designs and the power-economizing method of low-power consumption, extends battery life, adds device service time, improves operating efficiency and the quality of scientific research personnel.

Description

A kind of power-economizing method for microscope experiment system handheld operating means

Technical field

The present invention relates to microscope experiment field operation, in particular to a kind of power-economizing method of the hand-held device for microscope experiment system.

Background technology

Microinjection technique is one of important technological means of modern biological project, is widely used in the cell engineering fields such as transgenosis, test-tube baby and clone.Microscope experiment operating system is the automation equipment for experiments Microinjection of complete set, the Technology application such as it will control automatically, microelectronics, embedded, wireless telecommunications are in experiments Microinjection, automation and the intellectuality of experiments Microinjection is achieved by hand-held device and machine-hand driving system, compared to Traditional Man operation, drastically increase operating efficiency and the work quality of researcher.

Hand-held device is the man-machine interface of microscope experiment system, order is sent to machine-hand driving system by hand-held device by user, the operation of three axle robert realization to cell probe is controlled by drive system, and show robot work state and parameter in real time by LCD display, thus really achieve automation and the intellectuality of microscope experiment.

Hand-held device is powered battery, along with microscope experiment system improving constantly for hand-held apparatus function demand, the power consumption of hand-held device is also constantly increasing thereupon, how to design stable performance, one of difficult point that hand-held device low in energy consumption has become handheld device exploitation.The hardware designs of low-power consumption coordinates power-economizing method can ensure the stand-by time grown as far as possible, not only decreasing user's frequent charge to normally using the inconvenience brought, also extending battery life.

Therefore, the power-economizing method in the urgent need to a kind of hand-held device for microscope experiment system solves above problem.

Summary of the invention

In order to meet the functional requirement of microscope experiment system man-machine interface, and reduce the loss of supplying cell, increase device service time, extending battery life, the invention provides a kind of power-economizing method of the hand-held device for microscope experiment system.

For a power-economizing method for microscope experiment system handheld operating means, comprise low pressure drop, non-jitter power supply switch circuit auto switching electric source adapter and powered battery; Low-power consumption battery voltage detection circuit and method; And the operation method that the shallow sleep of microprocessor, deep sleep combine;

Described low pressure drop, non-jitter power supply switch circuit comprise microprocessor reset chip U1, PMOS transistor and rectifier diode; 1 pin of described microprocessor reset chip U1 is coupled to system reference ground, and 2 pin are coupled to described PMOS transistor grid, and 3 pin are coupled to power supply adaptor and export; Described PMOS transistor drain electrode is coupled to anode, and source electrode is coupled to system load; Described rectifier diode anode is coupled to power supply adaptor and exports, and negative electrode is coupled to load; Described low pressure drop, non-jitter power supply switch circuit detect and after waiting for power supply adaptor output voltage stabilization, automatically power supply are switched to adapter by battery;

Described low-power consumption battery voltage detection circuit comprises the first resistance and the second resistance; Described first resistance first end is coupled to anode, and described second resistance first end is coupled to microprocessor general-purpose output pin, and described first resistance and the second resistance second end are coupled to microprocessor analogue/digital quantizer input pin; When needs detect cell voltage, the microprocessor general-purpose output pin being coupled to the second resistance first end switches to output mode and output low level, and microprocessor obtains cell voltage by the analog/digital converter input pin being coupled to the second end of the first resistance and the second resistance; When not needing to detect cell voltage, the microprocessor general-purpose output pin being coupled to the second resistance first end switches to high impedance mode;

The shallow sleep pattern of described microprocessor is the normal mode of operation of microprocessor, i.e. the peripheral hardware work of microprocessor, kernel dormancy, and cycle timing wake-up kernel, enter shallow sleep pattern after performing of short duration monitoring program again; The duration that described hand-held device does not receive user operation, when exceeding preset value, microprocessor entered the deep sleep mode of peripheral hardware and kernel dormancy simultaneously, and user, by key wakeup, returns to shallow sleep pattern.

Beneficial effect of the present invention is: the present invention is on the basis meeting microscope experiment operating function demand, by hardware designs and the power-economizing method of low-power consumption, reduce the loss of supplying cell, extend battery life, add device service time, improve operating efficiency and the quality of scientific research personnel.

Accompanying drawing explanation

Fig. 1 is the microscope experiment hand-held apparatus structure block diagram of power-economizing method of the present invention;

Fig. 2 is low pressure drop, the non-jitter power supply switch circuit structure chart that the embodiment of the present invention provides;

Fig. 3 is the simple and easy battery voltage detection circuit structure chart of low-power consumption that the embodiment of the present invention provides;

Fig. 4 is the simple and easy battery voltage detection method flow diagram of low-power consumption that the embodiment of the present invention provides;

Fig. 5 is the microprocessor energy-saving run main program flow chart that the embodiment of the present invention provides;

Fig. 6 is the microprocessor wake-up interrupts service routine flow chart that the embodiment of the present invention provides.

Embodiment

Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as a limitation of the invention.

Fig. 1 is the microscope experiment hand-held apparatus structure block diagram adopting power-economizing method of the present invention.Peripheral circuit mainly comprises LCD display, for controlling mechanical chirokinesthetic photoelectric encoder and button and wireless communication module, microprocessor, by Peripheral Interface Control peripheral circuit, completes the man-machine interface task of hand-held device.Low pressure drop, non-jitter power supply switch circuit are used for the connection switched system power supply according to power supply adaptor.Managed the power consumption of micro-processor kernel and peripheral hardware and peripheral circuit by deep sleep, shallow sleep pattern operation method, realize hand-held device low-power consumption demand.Low-power consumption battery voltage detection circuit, in conjunction with low-power consumption battery voltage detection method, realizes low-power consumption battery voltage detection.

The low pressure drop that Fig. 2 provides for the embodiment of the present invention, non-jitter power supply switch circuit structure chart, this circuit is used for the connection switched system power supply according to power supply adaptor.In a particular embodiment, PMOS transistor model adopts AO3401, microprocessor reset chip U1 model to adopt IMP809L.

After adapter is connected to hand-held device, detect output voltage by described microprocessor reset chip U1, wait for its stable after, U1 turns off PMOS transistor by 2 pin being coupled to described PMOS transistor grid, realize power supply non-jitter and switch to adapter, to extend service time of battery; When adapter is not connected to hand-held device, system is battery-powered, and described PMOS transistor is open-minded, and battery is extremely low via described PMOS transistor pressure drop, realizes low-power consumption.

The simple and easy battery voltage detection circuit structure chart of low-power consumption that Fig. 3 provides for the embodiment of the present invention, described first resistance and the second resistance form voltage divider, the range that coupling microprocessor analogue/numeral (hereinafter referred to as A/D) is changed and battery voltage range.Adopt the simple and easy battery voltage detection method flow diagram of low-power consumption of the present invention see Fig. 4, major function makes circuit only just form path when needs detect cell voltage by the switching of general output pin (hereinafter referred to as GPIO) pattern, thus reduction power consumption, start from step 401, end at step 407:

Step 401: start;

Step 402:GPIO is configured to output mode, and output low level;

Step 403: start A/D conversion;

Step 404: wait for that A/D converts, if converted, enter step 405, otherwise get back to step 404;

Step 405: digital filtering is carried out to transformation result, and calculates cell voltage;

Step 406:GPIO is configured to high impedance mode;

Step 407: terminate.

Adopt the shallow sleep of microprocessor of the present invention, power-economizing method flow chart that deep sleep combines is see Fig. 5.In a particular embodiment, microprocessor adopts STM32F103.When major function is normal, microprocessor is in shallow sleep pattern, and kernel dormancy can reduce microprocessor 20% power consumption, and run beat according to monitoring program, periodic awakening kernel, performs of short duration monitoring program, and again enters shallow sleep pattern.If user does not operate device for a long time, when free counter count value equals preset value, microprocessor enters deep sleep mode, and by more liquid crystal display (hereinafter referred to as the LCD) backlight of current sinking in electronic switch shutoff device and encoder.Start from step 501, end at step 511:

Step 501: start;

Step 502: configure microprocessor enters shallow sleep pattern;

Step 503: latent period wakes timer up and overflows, if overflowed, enters step 304, otherwise gets back to step 303;

Step 504: wake microprocessor up;

Step 505: perform of short duration monitoring program;

Step 506: judging whether user has operational order to device, if any then proceeding to step 508, otherwise proceeding to step 507;

Step 507: free counter increases progressively;

Step 508: free counter resets, and proceeds to step 502;

Step 509: when judging whether free counter count value equals preset value (spilling), then proceed to step 510 in this way, otherwise proceed to step 502;

Step 510: close LCD backlight and photoelectric encoder power supply;

Step 511: configure microprocessor enters deep sleep mode, waits for that user wakes up.

After microprocessor enters deep sleep mode, system power dissipation is minimum, and when user needs operative installations, keys interrupt wakes up, and wake-up interrupts service routine flow chart, see Fig. 6, starts from step 601, ends at step 605:

Step 601: start;

Step 602: microprocesser initialization;

Step 603: wait for that microprocesser initialization completes, if completed, enter step 604, otherwise get back to step 603;

Step 604: open LCD backlight and photoelectric coding appliance mains switch;

Step 605: terminate;

Above-described embodiment is the present invention's more preferably embodiment, and the usual change that those skilled in the art carries out within the scope of technical solution of the present invention and replacement all should be included in protection scope of the present invention.

Claims (1)

1. for a power-economizing method for microscope experiment system handheld operating means, it is characterized in that, comprise low pressure drop, non-jitter power supply switch circuit auto switching electric source adapter and powered battery; Low-power consumption battery voltage detection circuit and method; And the operation method that the shallow sleep of microprocessor, deep sleep combine;

Described low pressure drop, non-jitter power supply switch circuit comprise IMP809L microprocessor reset chip U1, PMOS transistor and rectifier diode; 1 pin of described IMP809L microprocessor reset chip U1 is coupled to system reference ground, and 2 pin are coupled to described PMOS transistor grid, and 3 pin are coupled to power supply adaptor and export; Described PMOS transistor drain electrode is coupled to anode, and source electrode is coupled to system load; Described rectifier diode anode is coupled to power supply adaptor and exports, and negative electrode is coupled to load; Described low pressure drop, non-jitter power supply switch circuit detect and after waiting for power supply adaptor output voltage stabilization, automatically power supply are switched to adapter by battery;

Described low-power consumption battery voltage detection circuit comprises the first resistance and the second resistance; Described first resistance first end is coupled to anode, and described second resistance first end is coupled to microprocessor general-purpose output pin, and described first resistance and the second resistance second end are coupled to microprocessor analogue/digital quantizer input pin; When needs detect cell voltage, the microprocessor general-purpose output pin being coupled to the second resistance first end switches to output mode and output low level, and microprocessor obtains cell voltage by the analog/digital converter input pin being coupled to the second end of the first resistance and the second resistance; When not needing to detect cell voltage, the microprocessor general-purpose output pin being coupled to the second resistance first end switches to high impedance mode;

The shallow sleep pattern of described microprocessor is the normal mode of operation of microprocessor, i.e. the peripheral hardware work of microprocessor, kernel dormancy, and cycle timing wake-up kernel, enter shallow sleep pattern after performing of short duration monitoring program again; The duration that described hand-held device does not receive user operation, when exceeding preset value, microprocessor entered the deep sleep mode of peripheral hardware and kernel dormancy simultaneously, and user, by key wakeup, returns to shallow sleep pattern.