CN201408218Y - Programmable LCD/LED display compatible electronic measuring meter - Google Patents
Programmable LCD/LED display compatible electronic measuring meter Download PDFInfo
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- CN201408218Y CN201408218Y CN2009200676288U CN200920067628U CN201408218Y CN 201408218 Y CN201408218 Y CN 201408218Y CN 2009200676288 U CN2009200676288 U CN 2009200676288U CN 200920067628 U CN200920067628 U CN 200920067628U CN 201408218 Y CN201408218 Y CN 201408218Y
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Abstract
The utility model relates to a programmable LCD/LED display compatible electronic measuring meter, comprising a shell, a display board, a power supply and function expansion board and a signal processing board; wherein the shell is sheathed outside the power supply and function expansion board and the signal processing board, the display board is provided at the head of the shell and is connectedwith the power supply and function expansion board and the signal processing board, the display board is provided with press keys, a display circuit, a display driver and a display device, the power supply and function expansion board is provided with a function expansion module, the signal processing board is provided with a press key detection and display detection module, a signal input moduleand a MCU, the press keys and the display circuit are connected with the press key detection and display detection module, the press key detection and display detection module and the signal input module are connected with the MCU, and the MCU is connected with the display driver and the display device. The programmable LCD/LED display compatible electronic measuring meter has the advantages of reduced stock and reduced operation cost of production enterprise.
Description
Technical field
The utility model relates to electric measuring instrument, relates in particular to programmable LCD/LED and shows compatible electric measuring instrument.
Background technology
At present, the electric measuring instrument on the market is various in style, can be divided into charactron (LED) by display mode and show and liquid crystal display (LCD).Charactron shows to have long working life, looser to the working site environmental requirement; And liquid crystal display has intuitive display, characteristics that contrast is big, but liquid crystal display is comparatively responsive to the temperature of working site.
Just certainly will the LED Displaying Meter should be produced as instrument manufacturer, also the LCD instrument will be produced simultaneously for adapting to customer requirement.But LCD shows that with LED this is complete different two kinds of display packings, and the similar instrument of other manufacturer production is because this difference just must design the different viewing hardware of two covers and write the different embedded software of at least two covers in the market.When producing, as will cause instrument can not show the embedded software write error at all, delay production, and overlap similar software more and also be not easy to management.
Summary of the invention
The purpose of this utility model is exactly in order to overcome the defective that above-mentioned prior art exists, to provide a kind of easy to operate programmable LCD/LED to show compatible electric measuring instrument.
The purpose of this utility model can be achieved through the following technical solutions: programmable LCD/LED shows compatible electric measuring instrument, it is characterized in that, described electric measuring instrument comprises shell, display board, power supply and expansion board, signal-processing board, described shell is set in power supply and expansion board and signal-processing board outside, described display board is located at case head, and respectively with power supply and expansion board, signal-processing board connects, described display board is provided with button and display circuit, display driver and display, described power supply and expansion board are provided with function expanding module, described signal-processing board is provided with the button detection and shows detection module, signal input module, MCU, described button and display circuit detect with button and show that detection module is connected, described button detects and the demonstration detection module, signal input module is connected with MCU respectively, and described MCU is connected with display driver and display.
Described display board comprises LCD LCD panel, the digital display board of LED.
Described LCD LCD panel comprises LCD liquid crystal display driving and display, LCD button and display circuit, and the shows signal branch road connects low level in described LCD button and the display circuit.
The digital display board of described LED comprises the digital display driver of LED and display, LED button and display circuit, and the shows signal branch road connects high level in described LED button and the display circuit.
Described outer casing frontispiece is provided with the face frame, and this face frame is of a size of given size.
The given size of described frame size is (48 ± 5) mm * (48 ± 5) mm, (72 ± 5) mm * (72 ± 5) mm, (80 ± 5) mm * (80 ± 5) mm, (96 ± 5) mm * (96 ± 5) mm or (120 ± 5) mm * (120 ± 5) mm.
Compared with prior art, the utility model has the advantages that other parts are identical except the display unit difference, as the signals collecting of instrument front end part, with the outside expansion of extraneous contact; Separately as a printed circuit board, other parts also are designed to other printing forme with display unit, and printing forme directly adopts gang socket that different printing formes is bolted together can constitute a finished product instrument; In stock process at ordinary times, we only need display panel as independent stock, and other printing forme can be got ready the goods together because shared, has reduced the stock, has saved the operation cost of manufacturing enterprise.
Description of drawings
Fig. 1 is the circuit diagram that programmable LED of the present utility model shows compatible electric measuring instrument;
Fig. 2 is the circuit diagram that programmable LCD of the present utility model shows compatible electric measuring instrument;
Fig. 3 is the display board testing process figure that programmable LCD of the present utility model shows compatible electric measuring instrument.
Embodiment
Below in conjunction with specific embodiment the utility model is described further.
As Fig. 1, shown in Figure 3, programmable LCD/LED shows compatible electric measuring instrument, described electric measuring instrument comprises shell, display board, power supply and expansion board, signal-processing board, described shell is set in power supply and expansion board, the signal-processing board outside, described display board is located at case head, and respectively with power supply and expansion board, signal-processing board connects, described display board is provided with button and display circuit, display driver and display, described power supply and expansion board are provided with function expanding module, described signal-processing board is provided with the button detection and shows detection module, signal input module, MCU, described button and display circuit detect with button and show that detection module is connected, described button detects and the demonstration detection module, signal input module is connected with MCU respectively, and described MCU is connected with display driver and display.Described display board is the digital display board of LED.The digital display board of described LED comprises the digital display driver of LED and display, LED button and display circuit, and the shows signal branch road connects high level in described LED button and the display circuit.Described outer casing frontispiece is provided with the face frame, and this face frame is of a size of given size.The given size of described frame size is (48 ± 5) mm * (48 ± 5) mm.
Programmable LCD/LED shows the control method of compatible electric measuring instrument, and this method comprises: (1) button detects and shows the signal of shows signal branch road in detection module collection button and the display circuit; (2) detection signal is high level or low level; (3) be high level, judge that then display board is the digital display board of LED; (4) in MCU, set display mode; (5) call the display driver that mates with display mode.
On software, because of charactron and the shared software of liquid crystal display, we need have corresponding recognition function.After instrument powered on, program was at first gathered the level of shows signal branch road, discerned which kind of display mode of current employing, and carried out corresponding setting at corresponding display mode register, for future use.Program is handled at signals collecting, outside expansion control, reveal codes, the user session processing section is a common sparing all, will call corresponding display driver subroutine according to the content in the display mode register when calling display driver.
As Fig. 2, shown in Figure 3, programmable LCD/LED shows compatible electric measuring instrument, described electric measuring instrument comprises shell, display board, power supply and expansion board, signal-processing board, described shell is set in power supply and expansion board, the signal-processing board outside, described display board is located at case head, and respectively with power supply and expansion board, signal-processing board connects, described display board is provided with button and display circuit, display driver and display, described power supply and expansion board are provided with function expanding module, described signal-processing board is provided with the button detection and shows detection module, signal input module, MCU, described button and display circuit detect with button and show that detection module is connected, described button detects and the demonstration detection module, signal input module is connected with MCU respectively, and described MCU is connected with display driver and display.Described display board is the LCD LCD panel.Described LCD LCD panel comprises LCD liquid crystal display driving and display, LCD button and display circuit, and the shows signal branch road connects low level in described LCD button and the display circuit.Described outer casing frontispiece is provided with the face frame, and this face frame is of a size of given size.The given size of described frame size is (120 ± 5) mm * (120 ± 5) mm.
Programmable LCD/LED shows the control method of compatible electric measuring instrument, and this method comprises: (1) button detects and shows the signal of shows signal branch road in detection module collection button and the display circuit; (2) detection signal is high level or low level; (3) be low level, judge that then display board is the LCD LCD panel; (4) in MCU, set display mode; (5) call the display driver that mates with display mode.
On software, because of charactron and the shared software of liquid crystal display, we need have corresponding recognition function.After instrument powered on, program was at first gathered the level of shows signal branch road, discerned which kind of display mode of current employing, and carried out corresponding setting at corresponding display mode register, for future use.Program is handled at signals collecting, outside expansion control, reveal codes, the user session processing section is a common sparing all, will call corresponding display driver subroutine according to the content in the display mode register when calling display driver.
Claims (6)
1. programmable LCD/LED shows compatible electric measuring instrument, it is characterized in that, described electric measuring instrument comprises shell, display board, power supply and expansion board, signal-processing board, described shell is set in power supply and expansion board and signal-processing board outside, described display board is located at case head, and respectively with power supply and expansion board, signal-processing board connects, described display board is provided with button and display circuit, display driver and display, described power supply and expansion board are provided with function expanding module, described signal-processing board is provided with the button detection and shows detection module, signal input module, MCU, described button and display circuit detect with button and show that detection module is connected, described button detects and the demonstration detection module, signal input module is connected with MCU respectively, and described MCU is connected with display driver and display.
2. programmable LCD/LED according to claim 1 shows compatible electric measuring instrument, it is characterized in that, described display board comprises LCD LCD panel, the digital display board of LED.
3. programmable LCD/LED according to claim 1 shows compatible electric measuring instrument, it is characterized in that, described LCD LCD panel comprises LCD liquid crystal display driving and display, LCD button and display circuit, and the shows signal branch road connects low level in described LCD button and the display circuit.
4. programmable LCD/LED according to claim 2 shows compatible electric measuring instrument, it is characterized in that, the digital display board of described LED comprises the digital display driver of LED and display, LED button and display circuit, and the shows signal branch road connects high level in described LED button and the display circuit.
5. programmable LCD/LED according to claim 1 shows compatible electric measuring instrument, it is characterized in that, described outer casing frontispiece is provided with the face frame.
6. programmable LCD/LED according to claim 5 shows compatible electric measuring instrument, it is characterized in that the given size of described frame size is 48 ± 5mm * 48 ± 5mm, 72 ± 5mm * 72 ± 5mm, 80 ± 5mm * 80 ± 5mm, 96 ± 5mm * 96 ± 5mm or 120 ± 5mm * 120 ± 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200676288U CN201408218Y (en) | 2009-02-11 | 2009-02-11 | Programmable LCD/LED display compatible electronic measuring meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200676288U CN201408218Y (en) | 2009-02-11 | 2009-02-11 | Programmable LCD/LED display compatible electronic measuring meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201408218Y true CN201408218Y (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200676288U Expired - Lifetime CN201408218Y (en) | 2009-02-11 | 2009-02-11 | Programmable LCD/LED display compatible electronic measuring meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201408218Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913708A (en) * | 2014-03-07 | 2014-07-09 | 苏州市职业大学 | Electricity meter |
| CN105388344A (en) * | 2014-08-29 | 2016-03-09 | 罗德施瓦兹两合股份有限公司 | Device with a display memory having memory cells with a reduced number of bits and a method |
| CN105513548A (en) * | 2015-07-09 | 2016-04-20 | 上海盛善电气有限公司 | Automatic display mode selection method for embedded device |
-
2009
- 2009-02-11 CN CN2009200676288U patent/CN201408218Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913708A (en) * | 2014-03-07 | 2014-07-09 | 苏州市职业大学 | Electricity meter |
| CN105388344A (en) * | 2014-08-29 | 2016-03-09 | 罗德施瓦兹两合股份有限公司 | Device with a display memory having memory cells with a reduced number of bits and a method |
| CN105513548A (en) * | 2015-07-09 | 2016-04-20 | 上海盛善电气有限公司 | Automatic display mode selection method for embedded device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 201801 Jiading District Green Road, No. 253, Shanghai Patentee after: Shanghai Acrel Electric Co., Ltd. Address before: 201801 Shanghai Jiading District Malu Town hund Road No. 99 Patentee before: Shanghai Acrel Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201801 Jiading District Green Road, No. 253, Shanghai Patentee after: ACREL CO., LTD. Address before: 201801 Jiading District Green Road, No. 253, Shanghai Patentee before: Shanghai Acrel Electric Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100217 |