CN102349837A - Key control system of Doppler ultrasonic diagnosis instrument - Google Patents
Key control system of Doppler ultrasonic diagnosis instrument Download PDFInfo
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- CN102349837A CN102349837A CN2011101971593A CN201110197159A CN102349837A CN 102349837 A CN102349837 A CN 102349837A CN 2011101971593 A CN2011101971593 A CN 2011101971593A CN 201110197159 A CN201110197159 A CN 201110197159A CN 102349837 A CN102349837 A CN 102349837A
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Abstract
The invention relates to a key control system of a Doppler ultrasonic diagnosis instrument. The key control system is connected with a color ultrasonograph host computer, and comprises a single-chip computer control module, a key module, a TG C (time grain compensation) module, a light-emitting diode (LED) display module and a sound generating module. The key control system has the characteristics that: an LED intelligent display chip is used for controlling the display of a backlight lamp, therefore the overall brightness adjustment of the backlight lamp can be realized and on/off of each LED can be controlled separately; single-chip computer control is adopted to achieve the synchronization technology of the state indication lamp in the key and the host computer state, and working mode and adjusting mode indication lamps are used to achieve better human-computer interaction; and by adopting PS/2 interface to connect with a computer, the external connection of other keys are avoided in the setting process of basic input output system (BIOS), and the installation and maintenance become more convenient and rapider.
Description
Technical field
The present invention relates to the keyboard Designing field, relate in particular to a kind of Doppler ultrasonic diagnosis apparatus keyboard control system.
Background technology
Digital colorful Doppler ultrasound diagnostic apparatus (it is ultra to be called for short digital coloured silk) normally based on the compuscan of computer platform, is grouped into by ultrasonic part and computer department.Be different from the Standard PC keyboard; Color ultra keyboard needs and main frame combines together; Have powerful connections light so that can in the darkroom, operate etc., also have functions such as TGC (time gain compensation, Time Gain Compensation) adjusting, Encoders (encoder) adjusting in addition.To this demand, mainly contain two types of designs at present: 1. adopt the RS232 interface; 2. adopt RS232 interface+usb hub.A kind of integrated color ultrasonic control panel and its implementation that patent documentation CN200910108481.7 proposes; This control panel is accomplished all operations at color superman's machine interface with a slice processor of single chip computer; The scanning of centralized management 8 sections STC, button and encoders; And can send corresponding pulse width signal control key-press backlight lamp; Behind the signal processing of each module, add that different leader knowledges sends to main frame with serial mode.The shortcoming of existing RS232 interface keyboard mainly contains two aspects:
1.RS232 interface is by the alternate trend of USB interface, PC mainboard or industrial control board no longer provide outside serial ports mostly now, even the mainboard that has has no longer included serial ports;
2.PC part is as being provided with BIOS (basic input output system), necessary external QWERTY keyboard has brought difficulty to plant maintenance.
A kind of operation panel control system of Doppler ultrasonic imaging equipment that patent documentation CN200910109169.X proposes; Comprise control module; Adopt FPGA to realize the scanning of TGC potentiometer, button and encoder etc.; Send scan code through RS232 and give host computer; And can receive instruction such as the adjusting brightness of backlight from host computer; In FPGA, adopt the PWM technology to regulate brightness of backlight; Also adopt usb hub; The hub uplink port connects host computer, and downlink port connects the external USB interface of QWERTY keyboard, ultrasound procedure panel etc.The shortcoming of existing RS232+USB hub scheme is that the control panel circuit scale is big, complex structure, and cost is high, and needs the interface and the driver thereof of the ultrasonic functions peculiar module of otherwise designed, this module and main frame.
Wuxi Haiying Electronic Medical Systems Inc. adopts 8051 single chip microcomputers to realize the design of the ultra keyboard of the digital coloured silk of PS2.Design takes into account BIOS and is provided with, the driver that directly can use operating system (Windows) to provide.Be limited to technical merit at that time, bias light only do all extinguish, half is lighted, the control of all lighting.Num Lock is arranged on the Standard PC keyboard, three LED lights of Caps Lock and Scroll Lock, for realize the PC main frame with
The state synchronized of keyboard, adopted following solution: keyboard only sends the code that Num Lock, Caps Lock, Scroll Lock press or discharge; According to the button situation, main frame sends the instruction that is specifically designed to Num Lock, Caps Lock and three led states of Scroll Lock on the indication keyboard; Keyboard processor refreshes display lamp after receiving instruction.The lamp control only limits to Num Lock, and three LED of Caps Lock and Scroll Lock if will increase the LED indication, do not have ready-made instruction available in the QWERTY keyboard agreement, need through specialized designs keyboard driver extended instruction, realize the control purpose.In order to realize better man-machine interaction, digital colorful Doppler ultrasound diagnostic apparatus is provided with a few thing pattern usually, regulates the pattern display lamp, like the indication of mode of operations such as B, 2B, 4B, M, D, C, and the indication of adjusting patterns such as Depth, Zoom, Focus,
When equipment worked in certain pattern, this pattern display lamp was lighted.Keep keyboard mode display lamp and color ultra main frame state consistency to become the difficult point of the color ultra keyboard Designing of PS2.For keeping color ultra main frame and equipment state synchronous, solution relatively more commonly used at present is will indicate under the 2 lamp status informations through increase RS232 interface to pass to keyboard CPU, and the connecting line of main frame and equipment room increases thus, causes cost to increase simultaneously.
In sum, there is following shortcoming in prior art:
1. the color ultra keyboard of the existing RS232 of employing interface can't get into BIOS and be provided with when the PC host-initiated;
2. there are deficiencies such as complicated circuit, need otherwise designed driver in existing RS232+USB interface color ultrasonic control panel;
3. prior art can not be controlled the backlight under each button separately.
Summary of the invention
For addressing the above problem, that the present invention provides is simple in structure, exploitation is simple and easy, function is more powerful, can realize Doppler ultrasonic diagnosis apparatus keyboard control system that the ultra host B IOS of coloured silk is provided with.
For achieving the above object, the technical scheme that the present invention adopts is: a kind of Doppler ultrasonic diagnosis apparatus keyboard control system, be connected with the ultra main frame of coloured silk, and comprise TGC module, Keysheet module, LED display module, single chip control module, it is characterized in that:
Described one-chip computer module is connected with color ultra main frame through the PS/2 interface;
Described one-chip computer module receives the push button signalling of Keysheet module and sends to the ultra main frame of coloured silk through the PS/2 interface, and described one-chip computer module also receives the LED shows signal of Keysheet module;
Described one-chip computer module receives the output image conditioning signal of TGC module and sends color ultra main frame to through the PS/2 interface;
Described LED display module comprises the LED intelligent control chip, and described single chip control module output LED shows signal shows after the LED intelligent control chip is handled.
First preferred version of the present invention is that described single chip control module can also be connected with color ultra main frame through USB interface.
Second preferred version of the present invention does, described single chip control module can be connected with the ultra main frame of coloured silk through the PS/2-USB modular converter, and described PS/2-USB modular converter comprises the PS/2-USB conversion chip.
The 3rd preferred version of the present invention does, also comprises a sound generating module, is connected with single chip control module, and described sound generating module comprises buzzer.
The 4th preferred version of the present invention does, described TGC module comprises TGC regulator potentiometer, A/D modular converter, and described TGC regulator potentiometer is connected with single chip control module through the A/D modular converter.
The 5th preferred version of the present invention is that described Keysheet module comprises keyboard scanning circuit, encoder motion detection circuit.
The 6th preferred version of the present invention is that described LED intelligent control chip adopts CH452.
Technical advantage of the present invention is: adopt LED intelligent display chip that backlight is shown and make control, can realize the brightness regulation of backlight.Adopt the PS/2 interface to be connected, need not external connection keyboard in the system bios setting up procedure with computer, more convenient quick during maintenance.
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is further specified.
Description of drawings
Fig. 1 is a present embodiment circuit structure block diagram.
Fig. 2 is that present embodiment encoder motion detection circuit connects sketch map.
Fig. 3 is the circuit theory diagrams of present embodiment backlight lamp control module.
The specific embodiment
With reference to figure 1, a kind of Doppler ultrasonic diagnosis apparatus keyboard control system is connected with the ultra main frame of coloured silk, comprises TGC module, Keysheet module, LED display module, sound generating module, single chip control module,
One-chip computer module is connected with color ultra main frame through the PS/2 interface;
One-chip computer module receives the push button signalling of Keysheet module and sends to the ultra main frame of coloured silk through the PS/2 interface, and one-chip computer module also receives the LED shows signal of Keysheet module;
One-chip computer module receives the output image conditioning signal of TGC module and sends color ultra main frame to through the PS/2 interface;
The LED display module comprises the LED intelligent control chip, and single chip control module output LED shows signal shows after the LED intelligent control chip is handled.
The sound generating module is connected with single chip control module, and the sound generating module comprises buzzer.Be used for the whole system work process is done condition prompting.
Keysheet module comprises keyboard scanning circuit, encoder motion detection circuit.
Keysheet module comprises numerical character key, function key and encoder, lines up the 16*8 matrix by key with the ranks form on the Keysheet module, 16 of output alignments, and input detects 8 of column rules, supports 128 keys at most, and each ranks line infall is provided with a button.
The TGC module comprises TGC regulator potentiometer, A/D modular converter; The TGC regulator potentiometer is connected with single chip control module through the A/D modular converter; The AD modular converter is serial 8 passages; Adopt TLC0838 or ADC0838; The yield value of single chip control module timing scan TGC potentiometer; Yield value converts scan code to; After adding the gain identification code; Send to color ultra main frame then; Sweep the cycle, setting gap marker word, each the pairing TGC potentiometer of sense channel identifier word for guaranteeing key; The gap marker word adds 1 after detecting completion, points to next passage.
This digital coloured silk is ultra by ultrasonic front end, and color ultra main frame, display and ultrasonic control panel are formed.Ultrasonic control panel can be divided into a kind of Doppler ultrasonic diagnosis apparatus keyboard control system and trace ball control module two parts.Trace ball is equal to mouse, can directly adopt USB or PS2
Interface directly links to each other with the ultra main frame of coloured silk, does not adopt non-mainstream RS232 serial ports trace ball.
As shown in Figure 2, the encoder motion detection circuit comprises 8 encoders, and the A of 8 encoders, B end totally 16 signals are connected with single-chip microcomputer through 2 4051, and the C end of 8 encoders is connected respectively to the P1.0-P1.7 pin of single-chip microcomputer.The shared encoder of several regulatory functions, like Angle, Filter, Baseline, Velocity, Power, the shared encoder of ECG, Depth, Zoom, the shared encoder of Focus.
Keyboard scanning circuit provides Angle, Filter, Baseline, Velocity, Power, ECG six press keys; Button is used to activate/withdraw from this regulatory function; The backlight of button is lighted during activation; Keysheet module sends the adjustment state control word and gives color ultra main frame simultaneously; Have only a kind of adjusting wherein effective at every turn; Send the rotation code during its shared rotary encoder rotation and give color ultra main frame; Because of adopting the state synchronized technology; Color ultra main frame can be discerned current adjustment state, so need not be every kind of different rotation code of adjusting pattern design.
With reference to figure 3, the LED intelligent control chip adopts CH452, and 64 LED of every CH452 may command can receive the control instruction from MCU, the light on and off of independent each LED of control, and can set through dutycycle and realize brilliance control.But the cascade of multi-disc charactron chip for driving drives to realize more LED.Directly utilize ready-made chip, need not be lamp control specialized designs circuit, interface is simple, and cost is low.
The lamp control is ultrasonic peculiar circuit, is provided with for preserving the user, adopts following scheme:
1. set the inner a certain memory element of the inner EEPROM of single chip control module and deposit, read this content during start, change as brilliance control
Be changed to the brilliance control sign indicating number, write the LED intelligent control chip then;
2. whether detect the lamp control key when starting shooting presses;
3. the lamp control key has secretly to changing step by step by force by next control brightness, reverts to after the strongest the secretlyest again, and so repeatedly, the brilliance control sign indicating number changes thereupon;
4. discharge button when brightness reaches the user and needs, current brilliance control sign indicating number writes EEPROM after converting;
5. the lamp control key is not pressed during as if start, and then the direct use of expression setting value last time does not change.
Realize status indicator lamp and the synchronous method of Host Status in the keyboard:
1. the keyboard processing single chip loads and the identical mode control word of compuscan PC main frame when starting shooting, and writes the single-chip microcomputer internal RAM;
2. during operate as normal, according to key information that scans and the content that is deposited at the mode control word in the single-chip microcomputer ram in slice,
Single chip control module is calculated the mode control word that makes new advances, and deposits new mode control word in the single chip control module internal RAM, and refreshes the backlight state, simultaneously mode control word is converted into the status information sign indicating number, sends to color ultra main frame with the keyboard scancode form;
Color ultra main frame is accomplished through software and is resolved, and the Flushing status depositor is handed down to mode control word ultrasonic front end on the other hand on the one hand.Mode control word is divided into duty control word, adjustment state control word.Calculate Mode Control Code by mode control word.It is a status information identification code+mode control word serial number+Mode Control Code+status information tail identification code that the status information sign indicating number sends form.
In the present embodiment, the adjustment state control word is the byte data, and with the decimal scale unsigned number, the expression span is 0-255, reserved location 0, and actual use value scope is 0-31.Power regulates and activates in first regulatory function, and Depth regulates and activates in second regulatory function, and the corresponding states control word is 00010101 with binary number representation, and corresponding decimal scale is 021, and the status information sign indicating number is 0,2,1.
The present invention is not limited only to the protection domain shown in the foregoing description, and all are based on the invention thought of present embodiment, all in protection scope of the present invention.
Claims (7)
1. a Doppler ultrasonic diagnosis apparatus keyboard control system is connected with the ultra main frame of coloured silk, comprises TGC module, Keysheet module, LED display module, single chip control module, it is characterized in that:
Described one-chip computer module is connected with color ultra main frame through the PS/2 interface;
Described one-chip computer module receives the push button signalling of Keysheet module and sends to the ultra main frame of coloured silk through the PS/2 interface, and described one-chip computer module also receives the LED shows signal of Keysheet module;
Described one-chip computer module receives the output image conditioning signal of TGC module and sends color ultra main frame to through the PS/2 interface;
Described LED display module comprises the LED intelligent control chip, and described single chip control module output LED shows signal shows after the LED intelligent control chip is handled.
2. a kind of Doppler ultrasonic diagnosis apparatus keyboard control system as claimed in claim 1 is characterized in that: described single chip control module can also be connected with color ultra main frame through USB interface.
3. a kind of Doppler ultrasonic diagnosis apparatus keyboard control system as claimed in claim 1; It is characterized in that: described single chip control module can be connected with color ultra main frame through the PS/2-USB modular converter, and described PS/2-USB modular converter comprises the PS/2-USB conversion chip.
4. a kind of Doppler ultrasonic diagnosis apparatus keyboard control system as claimed in claim 1 is characterized in that: also comprise a sound generating module, be connected with single chip control module that described sound generating module comprises buzzer.
5. a kind of Doppler ultrasonic diagnosis apparatus keyboard control system according to claim 1; It is characterized in that: described TGC module comprises TGC regulator potentiometer, A/D modular converter, and described TGC regulator potentiometer is connected with single chip control module through the A/D modular converter.
6. a kind of Doppler ultrasonic diagnosis apparatus keyboard control system according to claim 1 is characterized in that: described Keysheet module comprises keyboard scanning circuit, encoder motion detection circuit.
7. a kind of Doppler ultrasonic diagnosis apparatus keyboard control system according to claim 1 is characterized in that: described LED intelligent control chip adopts CH452.
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| CN2011101971593A CN102349837A (en) | 2011-07-14 | 2011-07-14 | Key control system of Doppler ultrasonic diagnosis instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101971593A CN102349837A (en) | 2011-07-14 | 2011-07-14 | Key control system of Doppler ultrasonic diagnosis instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472903A (en) * | 2012-06-06 | 2013-12-25 | 泰山医学院 | Keyboard-control-based energy-saving timing control device for public searching machine |
| CN103908303A (en) * | 2014-04-16 | 2014-07-09 | 汕头市超声仪器研究所有限公司 | Ultrasonic diagnosis equipment capable of being quickly interconnected with operating panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620417A (en) * | 2009-07-30 | 2010-01-06 | 深圳市蓝韵实业有限公司 | Operation panel control system of Doppler ultrasonic imaging equipment |
| CN201510302U (en) * | 2009-09-29 | 2010-06-23 | 雷纪胜 | Ultrasonic doppler color blood-stream imaging system multi-functional measuring instrument |
| CN202211706U (en) * | 2011-07-14 | 2012-05-09 | 无锡海鹰电子医疗系统有限公司 | Keyboard control system for Doppler ultrasonic diagnostic device |
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2011
- 2011-07-14 CN CN2011101971593A patent/CN102349837A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620417A (en) * | 2009-07-30 | 2010-01-06 | 深圳市蓝韵实业有限公司 | Operation panel control system of Doppler ultrasonic imaging equipment |
| CN201510302U (en) * | 2009-09-29 | 2010-06-23 | 雷纪胜 | Ultrasonic doppler color blood-stream imaging system multi-functional measuring instrument |
| CN202211706U (en) * | 2011-07-14 | 2012-05-09 | 无锡海鹰电子医疗系统有限公司 | Keyboard control system for Doppler ultrasonic diagnostic device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472903A (en) * | 2012-06-06 | 2013-12-25 | 泰山医学院 | Keyboard-control-based energy-saving timing control device for public searching machine |
| CN103908303A (en) * | 2014-04-16 | 2014-07-09 | 汕头市超声仪器研究所有限公司 | Ultrasonic diagnosis equipment capable of being quickly interconnected with operating panel |
| CN103908303B (en) * | 2014-04-16 | 2016-05-18 | 汕头市超声仪器研究所有限公司 | Can patch fast the ultrasonic diagnostic equipment of guidance panel |
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Application publication date: 20120215 |