CN104161522A - Auxiliary distance-measuring device of wound area measurement system - Google Patents

Abstract

An auxiliary ranging device for a wound area measurement system is an auxiliary device for the wound area measurement system. The wound area measurement system is composed of wound area measurement software and electronic equipment with a camera. The device includes a shell, a processing module, a distance measuring module, a communication module, a self-locking switch, a power supply, a charging module, a switch and a boosting module. The shell includes a bottom plate, side panels, front panels, and fixing clips, and the bottom plate, side panels, and front panels are fixedly connected by solid glue, and together form a cuboid structure for fixing. The fixing clip is fixed on the bottom plate by solid glue. The fixing clip includes a retractable clip and a rotating shaft. The retractable clip can adjust the width according to the size of the electronic device to be clamped. The rotating shaft can be rotated 360° to adjust the best shooting angle. The function of the fixing clip is to reduce the distance between the measured shooting point and the actual shooting point. The wound area measurement system assists the ranging device to accurately measure the shooting distance, and transmits it to the wound area measurement system through Bluetooth.

Description

Auxiliary ranging device for wound area measurement system

technical field

The invention relates to an auxiliary ranging device for a wound area measurement system, which belongs to the technical field of medical image processing.

Background technique

About 1% of the world's population is plagued by persistent wound problems, and about 5% of medical expenses are spent on wound repair; the incidence of wounds, especially chronic and refractory wounds, is increasing year by year. Clinically, the measurement of the skin lesion area can be used as an observation index to assess the severity of the skin lesion and the recovery of related treatments. Accurate sampling of the wound area and image processing can complete the calculation of the skin injury area. The distance of the shooting distance is an important parameter that affects the accuracy of the image processing results, so accurate measurement of the shooting distance is very necessary.

Contents of the invention

The object of the present invention is to provide an auxiliary ranging device for the wound area measurement system, which is an auxiliary device for the wound area measuring system. The auxiliary ranging device for the wound area measuring system can accurately measure the shooting distance from the shooting point to the wound image area. And the shooting distance data is used in subsequent image processing, and can also be used to measure the shooting distance in other medical image processing problems.

The wound area measurement system consists of wound area measurement software and electronic equipment with a camera. The wound area measurement system calculates the actual area of the wound through the wound image collected by the camera and the shooting distance read by the auxiliary distance measuring device of the wound area measurement system, and then evaluates the severity of the injury, such as for the treatment and image recording of diabetic gangrene . Electronic equipment with a camera collects wound images, and wound area measurement software completes image processing, analysis and calculation of wound images. Image processing steps include cropping images, image binarization, converting grayscale images, removing invalid areas, and extracting effective areas. five steps. In order to solve the actual area calculation error caused by the shooting distance, the auxiliary distance measuring device of the wound area measurement system measures the distance from the shooting point to the wound image, and transmits the shooting distance data to the wound area measurement software through the Bluetooth transmission technology of the communication module The wound area measurement software uses the shooting distance data in the image processing step to complete the calculation of the wound area. Finally, the wound area is highlighted in red, and the highlighted wound area, wound area data and number of pixels occupied by the wound image are displayed on the screen of the electronic device.

In addition, in the process of measuring the distance from the shooting point to the wound image area, it is necessary to avoid direct contact with the human body and other operations that cause discomfort to the patient. Therefore, the ArduinoURM37V3.2 ranging module with temperature compensation serial port is used to complete non-invasive and indirect ranging. And through the Bluetooth transmission technology of the HC-05 wireless Bluetooth master-slave integrated serial port communication module, the transmission of the shooting distance is completed, which avoids the tediousness of the user manually inputting the shooting distance in the wound area measurement software, saves manpower and improves the wound area measurement system. usage efficiency.

In order to achieve the above object, the technical solution adopted by the present invention is an auxiliary ranging device for wound area measurement system, which is characterized in that: the device includes a housing, a processing module, a ranging module, a communication module, a self-locking switch, a power supply, and a charging module , switch, and booster module; use the ranging module to measure the distance between the wound area measurement system and the wound, use the communication module to transmit the distance data to the wound area measurement system, and use the charging module to not only realize the auxiliary wound area measurement system The charging of the distance measuring device can also charge other electronic devices.

The shell includes a bottom plate, a side panel, a front panel, and a fixing clip. The fixing clip includes a retractable clip and a rotating shaft. The bottom plate, the side panels, and the front panel are fixedly connected by solid glue, and the angle between the bottom plate and the four side panels is 90°. The angle between the front panel and the four side panels is 90°, and the front panel and the bottom plate are parallel to form a rectangular parallelepiped structure, and the fixing clip is fixed on the bottom plate by solid glue.

The auxiliary distance measuring device for the wound area measurement system is also characterized in that the size of the device is 6cm in length, 5cm in width, and 1cm in thickness, which is convenient to be clamped on the back of an electronic device with a camera by a fixing clip.

The auxiliary ranging device of the wound area measurement system is further characterized in that the bottom plate and the side panel of the housing are used to fix the processing module, the ranging module, the communication module, the self-locking switch, the power supply, the charging module, the switch, Boost module.

The auxiliary distance measuring device for the wound area measurement system is further characterized in that the probe part of the distance measuring module, the pressing part of the self-locking switch, and the USB charging port part of the charging module are placed outside the front panel.

The telescopic clip can adjust the width of the telescopic clip according to the size of the electronic device with the camera that needs to be clamped, and the rotating shaft can be rotated 360° to adjust the best shooting angle; the function of the fixed clip is to reduce the shooting point of the measurement That is, the distance between the probe position of the ranging module and the actual shooting point, that is, the position of the camera of the electronic device. The measurement error caused by the thickness of the ranging device of the wound area measurement system can be subtracted in the wound area measurement software to improve the measurement accuracy.

The communication module can establish the connection between the wound area measurement system auxiliary distance measuring device and the wound area measurement system through the wireless bluetooth transmission technology.

The charging module is provided with a charging port; inserting a charging cable with a micro USB interface into the charging port of the auxiliary distance measuring device of the wound area measurement system can realize charging of the auxiliary distance measuring device of the wound area measurement system.

The switch is composed of a switch for controlling low level and a switch for controlling high level, and controls the connection state between the processing module and the communication module.

The distance measuring module can measure the external temperature through a built-in temperature sensor, and realize temperature compensation when calculating the shooting distance, so as to reduce the error of shooting distance measurement caused by the influence of temperature on the ultrasonic propagation speed.

The processing module can be Arduino Nano ATMEGA328V3.0.

The distance measuring module can be an Arduino URM37V3.2 serial distance measuring module with temperature compensation.

The communication module can be an HC-05 wireless bluetooth master-slave integrated serial port communication module.

The power supply can be a polymer lithium battery.

The charging module may be a dedicated charging module for lithium batteries.

The boost module is a 5V boost module (DC-DC).

The self-locking switch is provided with a button. After pressing the self-locking switch, the wound area measurement system is in the state of measuring the shooting distance. After pressing the self-locking switch again, the key part of the self-locking switch bounces, and the wound area measurement system assists the ranging device In the off state, the function of measuring the shooting distance cannot be performed.

The processing module, the communication module, the charging module, and the boost module have prompt lights respectively, and the function of measuring the shooting distance is that after pressing the self-locking switch, the prompt lights of the processing module, the communication module, the charging module, and the boost module are on. The distance measurement module measures the shooting distance, and transmits the shooting distance data to the communication module through the calculation, processing and connection functions of the processing module, and the communication module transmits the shooting distance to the wound area measurement software through Bluetooth transmission technology.

The charging function is that the self-locking switch controls the working state of the charging circuit composed of a power supply, a charging module, a switch, and a booster module; After the lock switch pops up, the charging function cannot be performed.

The processing module is Arduino Nano ATMEGA328V3.0, the distance measuring module is Arduino URM37V3.2 band temperature compensation serial port ranging module, and the communication module is HC-05 wireless bluetooth master-slave integrated serial port communication module, so The connection relationship of the auxiliary ranging device of the wound area measurement system is as follows: one end of the +5V pin of the ranging module is connected to the 5V pin of the processing module, and the other end is connected to the VCC pin of the communication module; the GND of the ranging module The pin is connected to the GND pin of the processing module and the GND pin of the communication module, and the other pin is connected to a 5KΩ resistor and then connected to the IN pin of the communication module; the PWM pin of the ranging module is connected to the D8 pin of the processing module; The COMP/TRIG pin of the ranging module is connected to the D9 pin of the processing module; the TXD pin of the communication module is connected to the high-level switch, and then connected to the RX0 pin of the processing module; the RXD pin of the communication module is connected to control the low power switch. A flat switch, and then connect the TX1 pin of the processing module; the three terminals of the self-locking switch are A ₀ , A ₁ , A ₂ , where A ₀ is the moving end, and A ₁ and A ₂ are the non-moving ends; the power supply The positive pole is connected to the moving terminal A ₀ of the self-locking switch, the non-moving terminal A ₁ is connected to the positive pole of the booster module, the negative pole of the booster module is connected to the BAT- terminal of the charging module, and the BAT+ terminal of the charging module is connected to the non-moving terminal A of the self-locking switch _2. The BAT-end of the charging module is connected to the negative pole of the power supply to form a charging circuit.

Compared with the prior art, the present invention has the following beneficial effects.

1. Through actual testing, the auxiliary ranging device of the wound area measurement system in the present invention can complete the accurate measurement of the shooting distance, and can transmit the shooting distance data to the wound area measurement software through Bluetooth transmission technology for further use in wound image processing and In the calculation of wound area, it can also be used to measure the shooting distance in other medical image processing research.

2. Compared with other ultrasonic ranging devices or rangefinders, the ranging module in the present invention uses a ranging module with a temperature compensation serial port, which can compensate for changes in ultrasonic propagation speed caused by temperature changes, greatly reducing measurement error.

3. The communication module used in the present invention can transmit data reliably, quickly and stably through the Bluetooth transmission technology, avoiding the cumbersomeness of manually inputting the measurement data into the wound area measurement software, and there is no need to select the communication module again after selecting the communication module during pairing .

4. The present invention has its own charging circuit, and the working modules such as the charging module and the distance measuring module are integrated, which reduces the steps of charging and increases the efficiency of the device. The self-contained charging circuit can not only realize the charging of the auxiliary ranging device of the wound area measurement system, but also charge other electronic devices.

5. In the present invention, the fixing clip fixes the auxiliary ranging device of the wound area measurement system behind the electronic device with a camera equipped with the wound area measuring software through the telescopic clip with adjustable width, so that the shooting point of the measurement is the ultrasonic ranging module The position of the probe is approximately on the same plane as the actual shooting point, that is, the position of the camera of the electronic device, which reduces the measurement error of the shooting distance.

6. The invention has the advantages of high integration, small size, beautiful appearance, low material cost, good portability, energy saving and environmental protection.

Description of drawings

Fig. 1 is the internal structure diagram of the auxiliary ranging device of the wound area measuring system;

Figure 2.1 is a side view of the casing of the auxiliary ranging device of the wound area measurement system;

Figure 2.2 is the rear view of the casing of the auxiliary distance measuring device of the wound area measurement system;

Fig. 3 is an interface diagram of establishing a connection between the wound area measurement software and the HC-05 wireless bluetooth master-slave integrated serial port communication module;

Fig. 4 is the interface diagram of the Bluetooth device in the nearby area searched by the wound area measurement software;

Fig. 5 is the interface diagram of the wound area measurement software receiving the shooting distance;

Fig. 6 is an interface diagram of saving the shooting distance by the wound area measurement software.

Fig. 7 is a flow chart of the use of the wound area measurement system and the auxiliary ranging device.

In the figure: 1. shell, 2. processing module, 3. ranging module, 4. communication module, 5. self-locking switch, 6. power supply, 7. charging module, 8. switch, 9. booster module, 11. Bottom plate, 12, side panel, 13, front panel, 14, fixed clip, 141, retractable clip, 142, rotating shaft, 31, distance measuring sensor probe, 51, self-locking switch button, 71, charging port, 81, low power control A flat switch, 82, controls a high-level switch.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

Example

As shown in Figure 1-7, a wound area measurement system auxiliary ranging device, the processing module can be Arduino Nano ATMEGA328V3.0, the ranging module can be Arduino URM37V3.2 ranging module with temperature compensation serial port, The communication module can be HC-05 wireless bluetooth master-slave integrated serial port communication module, the power supply can be 3.7V. DC).

The Arduino Nano ATMEGA328V3.0 processing module described therein can be replaced by other types of processing modules. Due to the consideration of the production volume, the Arduino Nano ATMEGA328V3.0 processing module with small size and high computing efficiency is selected. The distance measurement module Arduino URM37V3.2 with temperature compensation serial port can be used to measure the shooting distance with other types of distance measurement modules (such as: HC-SR04). Since the temperature will affect the propagation speed of ultrasonic waves, the shooting distance will be affected. Measurement error, therefore, the measurement error of the ranging module with built-in temperature sensor is smaller, which can reach 1%. The communication module can be replaced by other types of communication modules. The HC-05 wireless bluetooth master-slave integrated serial communication module has a master-slave integrated structure, so it can directly send and receive data, which is more efficient.

Ranging function: After pressing the self-locking switch 5, the auxiliary ranging device of the wound area measurement system is in the working state, the prompt lights of the processing module 2, the communication module 4, the charging module 7, and the boosting module 9 are on, and the Arduino URM37V3.2 has The distance measurement module of the temperature compensation serial port measures the shooting distance by transmitting and receiving ultrasonic waves, and transmits the data of the shooting distance to the HC-05 wireless Bluetooth master-slave integrated serial communication module through the calculation, processing and connection functions of Arduino Nano ATMEGA328V3.0, HC- 05 The wireless Bluetooth master-slave integrated serial port communication module transmits the shooting distance to the wound area measurement software through Bluetooth transmission technology.

Charging function: The self-locking switch controls the working state of the charging circuit composed of 3.7V.800mA polymer lithium power supply, 1A lithium power supply dedicated charging module, and 5V boost module (DC-DC). After pressing the self-locking switch 5, the auxiliary ranging device of the wound area measurement system is in the charging state, and the charging cable with the micro USB interface is inserted into the charging port of the auxiliary ranging device of the wound area measuring system to complete the measurement of the wound area measuring system. The charging time of the auxiliary ranging device is 2 hours, and the working time of the auxiliary ranging device of the wound area measurement system is 10 hours after being fully charged. In addition, the auxiliary ranging device of the wound area measurement system can also charge other electronic devices. Turn on the self-locking switch, insert the USB interface of the charging cable into the charging port of the auxiliary ranging device of the wound area measuring system, and insert the micro USB interface into the electronic device The charging port can complete the charging of other electronic devices, such as: mobile phones, tablet computers, music players, video players, etc.

Data transmission function: The HC-05 wireless Bluetooth master-slave integrated serial port communication module in the auxiliary distance measuring device of the wound area measurement system transmits the measured shooting distance data to the wound area measurement system through Bluetooth transmission technology, and the belt in the wound area measurement system The electronic device with the camera turns on the Bluetooth function, automatically searches the surrounding Bluetooth devices, selects HC (the Bluetooth name of the HC-05 wireless Bluetooth master-slave integrated serial communication module is abbreviated as HC), and the wound area measurement software receives the shooting distance data, and the software calls The system camera or other software with shooting function shoots wound images, and the shooting distance data and wound images are used in the subsequent image processing steps. Finally, the electronic device with the camera displays the wound area highlighted by the wound area measurement software, and the calculated The area of the wound and the number of pixels occupied by the wound image.

After pressing the self-locking switch 5 again, the self-locking switch button 51 pops up, and the auxiliary ranging device of the wound area measurement system is in a closed state, and the functions of measuring the shooting distance, charging and data transmission cannot be completed.

The auxiliary ranging device of the wound area measurement system measures the shooting distance and transmits the shooting distance to the wound area measurement software through Bluetooth transmission technology, as shown in Figure 3-6, which shows the communication between the wound area measurement software and HC-05 wireless Bluetooth master-slave integrated serial port Module 4 establishes a connection and uses the saved shooting distance data for the interface diagram of subsequent image processing steps.

The specific operation steps are as follows,

The first step is to press the self-locking switch to open the device;

The second step, as shown in Figure 3, is to open the wound area measurement software. At this time, the "OK" button cannot be clicked. Click the "Read distance from Bluetooth" button, and the wound area measurement software will automatically turn on the Bluetooth function of the electronic device;

The third step, as shown in Figure 4, click the "Find Device" button to search for nearby Bluetooth devices, and click "Cancel" to return to the previous operation interface;

The fourth step, as shown in Figure 5, select the HC device and click "Connect", click the "Clear" option to clear the read shooting distance data, re-read the new data, click "Save" to enter as shown in Figure 6 interface;

The fifth step, as shown in Figure 6, click the "OK" button to save the read measurement distance, so as to realize the fast and accurate transfer of the measured shooting distance data from the HC-05 wireless Bluetooth master-slave integrated serial communication module to the wound area measurement system. Accurate transmission.

Claims (10)

1. the auxiliary range unit of wound area measuring system, is characterized in that: this device comprises shell (1), processing module (2), range finder module (3), communication module (4), self-lock switch (5), power supply (6), charging module (7), switch (8), boost module (9); Utilize range finder module to measure the distance between wound area measuring system and wound, utilize communication module that this range data is transferred in wound area measuring system, utilizing charging module can not only realize the charging of the auxiliary range unit of wound area measuring system can also be other electronic equipment chargings.

2. wound area measuring system according to claim 1 is assisted range unit, be further characterized in that, described shell (1) comprises base plate (11), side panel (12), front plate (13), fixation clamp (14), fixation clamp (14) comprises scalable folder (141), rotating shaft (142), base plate (11), side panel (12), front plate (13) is fixedly connected with by solid gum, base plate (11) is 90 ° with 4 side panels (12) angle, front plate (13) is 90 ° with 4 side panels (12) angle, front plate (13) is parallel with base plate (11), the common rectangular structure that forms is fixed, fixation clamp (14) is fixed on base plate (11) by solid gum.

3. the auxiliary range unit of wound area measuring system according to claim 1 and 2, is further characterized in that, the size of this device is long 6cm, wide 5cm, and thick 1cm, is convenient to be clamped in the electronic equipment back with photographic head by fixation clamp (14).

4. wound area measuring system according to claim 1 and 2 is assisted range unit, be further characterized in that, the base plate (11) of described shell (1) and side panel (12) are for fixedly processing module (2), range finder module (3), communication module (4), self-lock switch (5), power supply (6), charging module (7), switch (8), boost module (9).

5. according to the auxiliary range unit of the wound area measuring system described in claim 1 or 2 or 4, be further characterized in that, the USB charge port part (71) of pressing part (51), charging module (7) of the probe segment (31) of described range finder module (3), self-lock switch (5) is placed in the outside of front plate (13).

6. according to the auxiliary range unit of the wound area measuring system described in claim 1 or 2 or 3, be further characterized in that, the size of the electronic equipment with photographic head that described scalable folder (141) can clamp as required regulates the width of scalable folder, rotating shaft (142) can 360 ° of rotations to adjust best shooting angle; The function of fixation clamp (14) is that the shooting point that reduces to measure is that range finder module probe positions and actual photographed point are the distance of electronic equipment camera position, and the measurement error being caused by the range unit thickness of wound area measuring system can deduct to improve certainty of measurement in wound area Survey Software.

7. according to the auxiliary range unit of the wound area measuring system described in claim 1 or 4, be further characterized in that, described communication module (4) can be set up being connected of the auxiliary range unit of wound area measuring system and wound area measuring system by wireless blue tooth transmission technology, completes shooting distance data-transformation facility.

8. according to the auxiliary range unit of the wound area measuring system described in claim 1 or 4 or 5, be further characterized in that, described charging module (7) is provided with charge port (71); The charge port part (71) of charging wire with micro USB interface being inserted to the auxiliary range unit charging module (7) of wound area measuring system can realize the charging to the auxiliary range unit of wound area measuring system.

9. according to the auxiliary range unit of the wound area measuring system described in claim 1 or 4 or 7, be further characterized in that, described switch (8) is comprised of the switch (82) of controlling low level switch (81) and control high level, controls the connection status of processing module (2) and communication module (4).

10. according to the auxiliary range unit of the wound area measuring system described in claim 1 or 4 or 5 or 6, be further characterized in that, described range finder module (3) can by built-in temperature sensor to external world temperature measure, and realize temperature-compensating when calculating shooting distance, reduce the error of being measured by the temperature shooting distance that impact causes on ultrasonic propagation velocity.