CN212300404U - Digital display meter implementation system - Google Patents
Digital display meter implementation system Download PDFInfo
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- CN212300404U CN212300404U CN202021281841.1U CN202021281841U CN212300404U CN 212300404 U CN212300404 U CN 212300404U CN 202021281841 U CN202021281841 U CN 202021281841U CN 212300404 U CN212300404 U CN 212300404U
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Abstract
The utility model provides a digital display table implementation system, include: the system comprises an MCU (microprogrammed control unit) core processor, a menu software module and a display module, wherein the MCU core processor comprises a filtering algorithm module and the menu software module, the filtering algorithm module is used for filtering acquired data, and the menu software module is used for recording the number of menu lines of a cursor indicated item in an lcd screen and the number of dot matrix lines of the cursor; the power supply is electrically connected with the first end of the MCU core processor and comprises a battery module and a voltage stabilizing module. The utility model provides a digital display table implementation system, four buttons through button module setting come the operation menu, bear the setting and show the setting through the menu software module of good expansibility, convenience of customers operation stabilizes measured data through purpose-made filtering algorithm module, improves the acquisition precision, improves the digital display through the lcd screen module of improvement and experiences, and stability is good, and reaction rate is fast.
Description
Technical Field
The utility model relates to a digital display table technical field, in particular to digital display table implementation system.
Background
The digital display meter is an electronic meter for displaying, is applied to various industries at present, and has replaced pointer type meters in many occasions because the display data is accurate and clear at a glance. The realization system of digital display table has a lot of, but lacks a convenient operation, gathers the precision height, the good realization system of stability, the utility model provides a can realize convenient operation, gather the precision height, show in time, the good digital display table realization system of stability.
SUMMERY OF THE UTILITY MODEL
The utility model provides a digital display table realizes system, its purpose is difficult for the operation, the collection precision is not high in order to solve traditional digital display table realization system, poor stability's problem.
In order to achieve the above object, an embodiment of the utility model provides a digital display table implementation system, include:
the system comprises an MCU (microprogrammed control unit) core processor, a menu software module and a display module, wherein the MCU core processor comprises a filtering algorithm module and the menu software module, the filtering algorithm module is used for filtering acquired data, and the menu software module is used for recording the number of menu lines of a cursor indicated item in an lcd screen and the number of dot matrix lines of the cursor;
the power supply is electrically connected with the first end of the MCU core processor and comprises a battery module and a voltage stabilizing module.
Wherein, still include:
the first end of the adc acquisition module is electrically connected with the second end of the MCU core processor through an spi interface;
the rtc module is electrically connected with the third end of the MCU core processor through an i2c interface;
and the data storage module is electrically connected with the fourth end of the MCU core processor through an i2c interface.
Wherein, still include:
the lcd screen module is electrically connected with the fifth end of the MCU core processor through an i2c interface;
a bc26 module, wherein a first end of the bc26 module is electrically connected with a sixth end of the MCU core processor through a uart interface;
and the key module is electrically connected with the seventh end of the MCU core processor through a gpio interface.
Wherein, still include:
the first end of the voltage amplification module is electrically connected with the second end of the adc acquisition module;
a sensor module electrically connected to the second end of the voltage amplification module.
Wherein, still include:
a nbiot card electrically connected to the second end of the bc26 module.
The key module is provided with an upper key, a lower key, a left key, a right key and a main menu key.
The LCD screen module adopts a broken code screen and a dot matrix screen, numbers are displayed through the broken code screen, characters are displayed through the dot matrix screen, the LCD screen module is used for covering character contents into the dot matrix screen, and the part of the dot matrix screen where the flower screen appears is cleared and adjusted.
The above technical scheme of the utility model has following beneficial effect:
the above embodiment of the utility model digital display table implementation system, four buttons through button module setting come the operational menu to reach the purpose of convenient operation, bear the setting and show the setting through the menu software module of good expansibility, convenience of customers operation stabilizes measured data through purpose-made filtering algorithm module, improves the acquisition precision, improves the digital display through the lcd screen module of improvement and experiences, system stability is good, and reaction rate is fast.
Drawings
Fig. 1 is a block diagram of the present invention;
FIG. 2 is a flow diagram of the filtering algorithm module of the present invention;
FIG. 3 is a flow chart of the menu software module of the present invention;
fig. 4 is a schematic structural diagram of the key module of the present invention;
FIG. 5 is a flow chart of the present invention for switching between the upper and lower menus;
FIG. 6 is a flow chart of the key module of the present invention returning to the main menu and exiting the menu;
FIG. 7 is a flow chart of the present invention key module save menu configuration;
fig. 8 is a flow chart of the lcd screen module of the present invention.
[ description of reference ]
1-MCU core processor; 2-a filtering algorithm module; 3-menu software module; 4-a power supply; 5-a battery module; 6, a voltage stabilizing module; a 7-adc acquisition module; 8-rtc module; 9-a data storage module; 10-lcd screen module; an 11-bc26 module; 12-a key module; 13-a voltage amplification module; 14-a sensor module; 15-nbiot card.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model discloses to the difficult operation of current digital display table realization system, gather the precision not high, the problem of poor stability provides a digital display table realization system.
As shown in fig. 1 to 8, an embodiment of the present invention provides a digital display meter implementation system, including: the system comprises an MCU (microprogrammed control unit) core processor 1, wherein the MCU core processor 1 comprises a filtering algorithm module 2 and a menu software module 3, the filtering algorithm module 2 is used for filtering acquired data, and the menu software module 3 is used for recording the number of menu lines of an item pointed by a cursor in an lcd screen and the number of dot matrix lines of the cursor; and the power supply 4 is electrically connected with the first end of the MCU core processor 1, and the power supply 4 comprises a battery module 5 and a voltage stabilizing module 6.
The utility model discloses an above-mentioned embodiment digital display table implementation system, like fig. 2, filtering algorithm module 2 gathers data and carries out a lot of sampling and sequences to data, go the data in the middle of the back of sequencing and ask the average value of all data, compare current average value and last average value again, judge whether the difference of current average value and last average value is too big, remove an old data in the average queue of data when the difference of current average value and last average value is not too big, add new data into the average queue of data, average the data in the average queue of data, show the average data in the average queue of data, the average queue of data is directly emptied when the difference of current average value and last average value is too big, add new data into the average queue of data, show new data. The filtering algorithm module 2 judges whether to enter the next time-consuming filtering step by adopting a threshold filtering method, so that only average filtering can be performed when the filtering is really changed, and real-time and stable numerical values can be displayed in real time. The filtering algorithm module 2 not only ensures that real-time data can be displayed when manual operation is performed, but also ensures that stable data can be displayed when the data tends to be stable when no manual interference is performed, thereby truly realizing the existing filtering, and not sacrificing too much real-time performance to ensure the filtering effect. As shown in fig. 3, the menu software module 3 performs a menu operation: 1. displaying menu content, recording the number of menu lines pointed by a cursor and the number of dot matrix lines where the cursor is located, carrying out downward operation on the cursor, updating the number of menu lines pointed by the cursor and the number of dot matrix lines where the cursor is located, judging whether the number of menu lines pointed by the cursor is greater than the number of dot matrix lines where the cursor is located, displaying the menu content of the previous lines when the number of menu lines pointed by the cursor is not greater than the number of dot matrix lines where the cursor is located, keeping the cursor at the lowest line of dot matrix lines when the number of menu lines pointed by the cursor is greater than the number of dot matrix lines where the cursor is located, and displaying a full dot matrix screen; 2. displaying menu content, recording the number of menu lines pointed by a cursor and the number of dot matrix lines where the cursor is located, carrying out up operation on the cursor, updating the number of menu lines pointed by the cursor and the number of dot matrix lines where the cursor is located, judging whether the cursor reaches the top, maintaining menu display when the cursor does not reach the top, updating the number of menu lines pointed by the cursor when the cursor reaches the top, keeping the cursor at the top, and displaying a full dot matrix screen backwards from the number of menu lines pointed by the cursor. When the menu software module 3 is operated up and down, the number of lines of the menu content is more than that of the dot matrix screen, and only a part of the menu can be displayed, and the digital display table implementation system displays a part of the content to be displayed according to the operation of a user, so that the effect of convenient configuration of the whole menu is achieved, and the purpose of judging the form of the menu displayed in the next step is achieved by using two variables, namely the number of lines of the menu of the item pointed by the cursor and the number of lines of the dot matrix of the cursor. The battery module 5 adopts a battery packaged by 3.7v and 26050, and the battery supplies power to the digital display meter after being stabilized by 3.3v of the voltage stabilizing module 6.
Wherein, still include: the adc acquisition module 7 is used for electrically connecting a first end of the adc acquisition module 7 with a second end of the MCU core processor 1 through an spi interface; the rtc module 8 is electrically connected with the third end of the MCU core processor 1 through an i2c interface; and the data storage module 9 is electrically connected with the fourth terminal of the MCU core processor 1 through an i2c interface.
Wherein, still include: the lcd screen module 10, wherein the lcd screen module 10 is electrically connected with the fifth end of the MCU core processor 1 through an i2c interface; a bc26 module 11, a first end of the bc26 module 11 being electrically connected to a sixth end of the MCU core processor 1 through a uart interface; and the key module 12 is electrically connected with the seventh end of the MCU core processor 1 through a gpio interface.
Wherein, still include: a first end of the voltage amplification module 13 is electrically connected with a second end of the adc acquisition module 7; a sensor module 14, wherein the sensor module 14 is electrically connected to the second end of the voltage amplifying module 13.
Wherein, still include: an nbiot card 15, the nbiot card 15 electrically connected to the second end of the bc26 module 11.
The digital display meter implementing system of the above embodiment of the present invention, the MCU core processor 1 is connected to the data storage module 9 through an i2c interface, the MCU core processor 1 communicates with the 24-bit high-precision low-power adc collecting module 7 through an spi interface, the sensor module 14 inputs the sensor signal into the voltage amplifying module 13, the adc collecting module 7 collects the amplified sensor signal after the sensor signal is amplified by the voltage amplifying module 13, the MCU core processor 1 filters the sensor signal result collected by the adc collecting module 7 through the filtering algorithm module 2, the MCU core processor 1 communicates with the lcd screen module 10 through an i2c interface, and sends the menu of the menu software module 3 to the lcd screen module 10 through an i2c interface, the lcd screen module 10 displays the received information, the MCU core processor 1 communicates with the bc26 module 11 through a uart interface, reads the information of the nbiot card 15 through the bc26 module 11 with a baud rate of 115200, registers and networks, the MCU core processor 1 triggers a corresponding key operation by detecting the high and low levels of the key module 12, the MCU core processor 1 communicates with the data storage module 9 through an i2c interface, stores the acquired data and configuration data to be stored in the data storage module 9, and the MCU core processor 1 sets and reads the current time through an i2c interface and adds a timestamp to the data to be stored.
The key module 12 is provided with an up key, a down key, a left key, a right key and a main menu key.
The utility model discloses an above-mentioned embodiment digital display table implementation system, like FIG. 4, button module 12 sets up four according to the construction into through the improvement with original five and presses the construction and be last key, lower key, left and right key and main interface key respectively. As shown in fig. 5, the key module 12 switches up and down menus: pressing a left key and a right key to enter a menu, pressing the key to switch the upper level and the lower level of the menu, judging whether the current menu is in the last level menu, entering the next level menu when the current menu is in the last level menu, and returning to the previous level menu when the current menu is not in the last level menu; as shown in fig. 6, the key module 12 returns to the main menu and exits the menu: pressing a left key and a right key to return to a main interface or a main menu, judging whether the main menu is currently positioned or not, quitting the menu when the main menu is currently positioned, and returning to the main menu when the main menu is not currently positioned; as shown in fig. 7, the key module 12 saves the menu configuration: pressing an upper key and a lower key to switch the pointing content of the cursor, switching the pointing of the cursor when the cursor is in the last level menu and switching the pointing of the cursor when the cursor is not in the last level menu according to judgment whether the upper key or the lower key is switched in the last level menu at present, and storing the configuration.
The lcd screen module 10 adopts a broken code screen and a dot matrix screen, numbers are displayed through the broken code screen, characters are displayed through the dot matrix screen, the lcd screen module 10 is used for covering character contents into the dot matrix screen, and the part of the dot matrix screen where the screen is shown is cleared and adjusted.
Above-mentioned embodiment digital display table implementation system, be in order to be fast with the data update that needs show lcd screen module 10 is last, just need count less disconnected sign indicating number screen with the drive, lcd screen module 10 adopts disconnected sign indicating number screen to add the mode of dot matrix screen to order lcd screen module 10 shows frequent digit of change such as digit with disconnected sign indicating number screen, shows the content that changes infrequently such as menu and unit with dot matrix screen, both can update fast display data, can satisfy the effect that the menu shows again. As shown in fig. 8, the lcd screen module 10 first displays the content, then updates the content, and directly writes the updated content into the dot matrix screen register, without emptying the content and then displaying, emptying the remaining place according to experience, or directly writing 0 into the remaining register. The lcd screen module 10 rapidly covers the contents on the dot matrix screen by using a covering replacement mode, and then performs some clearing adjustment on the part with the screen splash in the dot matrix screen, so that the step of clearing the whole dot matrix screen is omitted, the time for displaying the contents of another screen is effectively shortened, and the phenomenon of screen flashing in the screen clearing process under the condition of poor performance of a processor is avoided.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A digital display meter implementation system is characterized by comprising:
the system comprises an MCU (microprogrammed control unit) core processor, a menu software module and a display module, wherein the MCU core processor comprises a filtering algorithm module and the menu software module, the filtering algorithm module is used for filtering acquired data, and the menu software module is used for recording the number of menu lines of a cursor indicated item in an lcd screen and the number of dot matrix lines of the cursor;
the power supply is electrically connected with the first end of the MCU core processor and comprises a battery module and a voltage stabilizing module.
2. The digital display meter implementation system of claim 1, further comprising:
the first end of the adc acquisition module is electrically connected with the second end of the MCU core processor through an spi interface;
the rtc module is electrically connected with the third end of the MCU core processor through an i2c interface;
and the data storage module is electrically connected with the fourth end of the MCU core processor through an i2c interface.
3. The digital display meter implementation system of claim 2, further comprising:
the lcd screen module is electrically connected with the fifth end of the MCU core processor through an i2c interface;
a bc26 module, wherein a first end of the bc26 module is electrically connected with a sixth end of the MCU core processor through a uart interface;
and the key module is electrically connected with the seventh end of the MCU core processor through a gpio interface.
4. The digital display meter implementation system of claim 2, further comprising:
the first end of the voltage amplification module is electrically connected with the second end of the adc acquisition module;
a sensor module electrically connected to the second end of the voltage amplification module.
5. The digital display meter implementation system of claim 3, further comprising:
a nbiot card electrically connected to the second end of the bc26 module.
6. The digital display meter implementation system of claim 3, wherein the key module is provided with an up key, a down key, a left key, a right key, and a main menu key.
7. The digital display meter realization system according to claim 3, characterized in that the lcd screen module adopts a code break screen and a dot matrix screen, the code break screen displays numbers, the dot matrix screen displays characters, the lcd screen module is used for covering character contents into the dot matrix screen, and the part of the dot matrix screen where the screen is patterned is removed and adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021281841.1U CN212300404U (en) | 2020-07-02 | 2020-07-02 | Digital display meter implementation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021281841.1U CN212300404U (en) | 2020-07-02 | 2020-07-02 | Digital display meter implementation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212300404U true CN212300404U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021281841.1U Active CN212300404U (en) | 2020-07-02 | 2020-07-02 | Digital display meter implementation system |
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|---|---|
| CN (1) | CN212300404U (en) |
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- 2020-07-02 CN CN202021281841.1U patent/CN212300404U/en active Active
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