CN103677324A - Virtual instrument operation and control device based on single hand keyboard and mouse - Google Patents

Abstract

The invention discloses a virtual instrument operation and control device based on a single hand keyboard and mouse. A sending end of the virtual instrument operation and control device comprises a keyboard module, an inertial navigation module, a controller and a wireless sending module, wherein press keys arranged on the keyboard module comprise function press keys and a knob press key which respectively correspond to function press keys and a knob arranged on a virtual instrument panel, the function press keys comprise a single function press key corresponding to one virtual instrument function and reuse function press keys corresponding to a plurality of virtual instrument mutual exclusion functions, the inertial navigation module calculates out quaternion according to parameters of a three-axis gyroscope and a three-axis accelerator, the controller generates control signals according to pressing signals of the keyboard module and the quaternion of the inertial navigation module, when the pressing signals are from the function press keys, function control signals are generated, and when the pressing signals are from the knob press key, knob control signals are generated and are sent to the receiving end through the wireless sending module. The virtual instrument operation and control device has the advantages that the operation is simple and convenient, and the flexible operation and control on a virtual instrument can be realized.

Description

A kind of virtual instrument actuation means based on singlehanded key mouse

Technical field

The invention belongs to virtual instrument and control technical field, more specifically say, relate to a kind of virtual instrument actuation means based on singlehanded key mouse.

Background technology

Virtual instrument is a kind of instrument that forms, has visualization interface in Basis of Computer Engineering by increasing related hardware and software building.Compare with traditional instrument, the display of virtual instrument, button, knob etc. all by software interface but not hardware component realize.Various " buttons " and " knob " that user can use mouse or button on computer display screens, to operate the Soft-panel of Virtual Instrument easily and flexibly carry out test job, and can pass through the different virtual instrument of windows exchange according to different test requests, or by revising software, change, increase and decrease function and the scale of virtual instrument system.The superior features such as this " exploitability " that virtual instrument has and " extensibility " make virtual instrument have stronger vitality and competitive power.Virtual instrument can be widely used in a plurality of fields such as electronic surveying, space flight and aviation, power engineering, mechanical engineering.At present, virtual instrument adopts conventional mouse or keyboard etc. to control more, but traditional actuation means can not adapt to the needs of virtual instrument completely, and some functions need to could realize by complicated operative combination.

The singlehanded key mouse of wireless 3D be a kind of by keyboard and mouse be combined into one can one-handed performance input media, it has the function that the input of keyboard text and mouse pointing are inputted simultaneously.The singlehanded key mouse of wireless 3D, because it is controlled flexibly, is widely used, becomes the actuation means that has development prospect.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, a kind of virtual instrument actuation means based on singlehanded key mouse is provided, realize controlling flexibly virtual instrument.

For achieving the above object, the present invention is based on the virtual instrument actuation means of singlehanded key mouse, it is characterized in that comprising:

Virtual instrument actuation means based on singlehanded key mouse, comprise transmitting terminal and receiving end, transmitting terminal transmits control signal, receiving end is connected with virtual instrument hardware device, by the control signal receiving from transmitting terminal and be transmitted to virtual instrument, it is characterized in that, described transmitting terminal comprises Keysheet module, inertial navigation module, controller, wireless sending module, wherein:

Keysheet module, comprise function button and knob button, function button comprises single function button and multiplexing function button, wherein, single function button is corresponding to a function of Virtual Instrument, each operation in N operation of multiplexing function button represents respectively N mutual exclusion function of Virtual Instrument, and knob button is used to indicate the knob in Virtual Instrument; Each button can produce the signal of pressing that carries corresponding virtual instrument button numbering when pressing operation, and Keysheet module will be pressed signal and send to controller;

Inertial navigation module, comprises three-axis gyroscope, three axle accelerators, motion process device, and the calculation of parameter that motion process device measures according to three-axis gyroscope and three axle accelerators goes out hypercomplex number and sends to controller;

Controller, the hypercomplex number of pressing signal and the transmission of inertial navigation module sending for gathering Keysheet module, when pressing signal from function button, generates corresponding function control signal and is sent to wireless sending module; When pressing signal from knob button, from obtaining, press the signal t zero hour _sstart to the t finish time _e, every Δ t, calculate a knob increment D _n, Δ t is default time interval parameter, computing method are:

$D_n=\left\{\begin{array}{c}(\mathrm{ya}{w}_n-\mathrm{ya}{w}_{n-1})/K,t_0+n\&times;\mathrm{\&Delta;t}<t_e\\ (\mathrm{ya}{w}_e-\mathrm{ya}{w}_{n-1})/K,t_0+n\&times;\mathrm{\&Delta;t}\&GreaterEqual;t_e\end{array}\right.$

Wherein, n=1,2,3 ..., K represents scale-up factor, yaw _n-1, yaw _n, yaw _erepresent respectively t _s+ (n-1) * Δ t, moment t _s+ n * Δ t, press constantly t of signal ended _ecourse angle, by correspondence constantly inertial navigation module send to the hypercomplex number of controller to calculate, often obtain a knob increment D _ngenerate corresponding knob control signal and be sent to wireless sending module;

Wireless sending module, for transmitting control signal to receiving end.

Further, the virtual instrument function of each operational correspondence of multiplexing function button adopts counter controls, counter is for recording the pressing operation number of times of multiplexing function button, the every increase of number of times once, by default virtual instrument functional sequence table, switch backward a function, if current function is that in sequence list, last and number of times add 1, return to first function of sequence list.

Further, course angle yaw calculates as follows:

$\mathrm{yaw}=\mathrm{arcr}\tan \left(\frac{2(\mathrm{wz}+\mathrm{xy})}{1-2({\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA0000451077620000012.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+z^2)}\right)$

Wherein, w is the real part in hypercomplex number (w, x, y, z), x, and y, z is the imaginary part in hypercomplex number (w, x, y, z).

Further, also comprise a wireless transmission buffer zone, for storing the control signal not yet sending.

The present invention is based on the virtual instrument actuation means of singlehanded key mouse, its transmitting terminal comprises Keysheet module, inertial navigation module, controller, wireless sending module, button on Keysheet module comprises function button and knob button, function button and knob in the corresponding Virtual Instrument of difference, function button comprises single function button of a corresponding virtual instrument function, and the multiplexing function button of corresponding a plurality of virtual instrument mutual exclusion functions; Inertial navigation module goes out hypercomplex number according to the calculation of parameter of its three-axis gyroscope and three axle accelerators, controller generates control signal by the hypercomplex number of pressing signal and inertial navigation module to Keysheet module, when pressing signal from function button, systematic function control signal, when pressing signal from knob button, generate knob control signal, by wireless sending module, send to receiving end, by receiving end, send to virtual instrument again, thereby realize controlling virtual instrument.What the present invention adopted is singlehanded key mouse, and combination button is less, has push-button combination operated also comparatively simply, and one hand can be realized controlling flexibly virtual instrument.

Accompanying drawing explanation

Fig. 1 is transmitting terminal hardware configuration schematic diagram of the present invention;

Fig. 2 is virtual dual trace oscilloscope panel exemplary plot;

Fig. 3 is Keysheet module function division exemplary plot;

Fig. 4 is a kind of embodiment workflow schematic diagram of controller.

Embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described, so that those skilled in the art understands the present invention better.Requiring particular attention is that, in the following description, when perhaps the detailed description of known function and design can desalinate main contents of the present invention, these are described in here and will be left in the basket.

Embodiment

The virtual instrument actuation means that the present invention is based on singlehanded key mouse, comprises transmitting terminal and receiving end, and transmitting terminal is used for transmitting control signal, and receiving end is connected with virtual instrument hardware device, by the control signal receiving from transmitting terminal and be transmitted to virtual instrument.The software module of virtual instrument receives control signal by hardware device, carries out corresponding operation.In the present embodiment, receiving end adopts the USB Dongle of Nordic company to realize.Fig. 1 is transmitting terminal hardware configuration schematic diagram of the present invention.As shown in Figure 1, transmitting terminal of the present invention comprises Keysheet module, inertial navigation module, controller, wireless sending module.

Keysheet module, comprise function button and knob button, function button comprises single function button and multiplexing function button, wherein, single function button is corresponding to a function of Virtual Instrument, each operation in N operation of multiplexing function button represents respectively N mutual exclusion function of Virtual Instrument, N >=2, and knob button is used to indicate the knob in Virtual Instrument; Each button can produce the signal of pressing that carries corresponding virtual instrument button numbering when pressing operation, and Keysheet module will be pressed signal and send to controller.Visible, the button on Keysheet module and the button in Virtual Instrument have corresponding relation.

Fig. 2 is virtual dual trace oscilloscope panel exemplary plot.As shown in Figure 2, the button on this virtual dual trace oscilloscope panel is divided into four parts according to function: vertical control section (VERTICAL), horizontal control section (HORIZONTAL), triggering control section (TRIGGER), other parts.According to mode of operation, divide and button can be divided into: multiplexing function button, as start/stop (Run/Stop) button, rise/fall (Rising/Falling) button; Single function button, as Auto Set button; Knob, as displacement regulates (Position) etc.

In the present embodiment, the multiplexing function button of Virtual Instrument has two states: press and upspring, representing respectively two mutual exclusion functions, two functions of synchronization only exist one of them, and for example start/stop button, presses and represent to start, and upsprings and represents to stop.This multiplexing function button can adopt the single function button of two on Keysheet module to realize, and also can adopt a multiplexing function button on Keysheet module to realize.Single function button of Virtual Instrument, and single function button of Keysheet module is naturally corresponding, if Virtual Instrument has single function button of mutual exclusion, also can adopt a multiplexing function button on Keysheet module to realize.In actual applications, on Keysheet module, the configuration of multiplexing function button and single function button is determined as required.Knob in Virtual Instrument is to control by the knob button on Keysheet module and common realization of inertial navigation module.Knob button on Keysheet module is used to indicate the knob in Virtual Instrument, and is one to one.

On Keysheet module, the virtual instrument function of each operational correspondence of multiplexing function button can adopt counter controls, counter is for recording the pressing operation number of times of multiplexing function button, the every increase of number of times once, by default virtual instrument functional sequence table, switch backward a function, if current function is that in sequence list, last and number of times add 1, return to first function of sequence list.

Fig. 3 is Keysheet module function division exemplary plot.As shown in Figure 3, in the present embodiment, Keysheet module is divided into Master Keyboard and supervisory keyboard, the matrix keyboard that Master Keyboard is 3 * 4, and supervisory keyboard is four independent buttons.Table 1 is the mapping table of button in button and Virtual Instrument in Keysheet module in the present embodiment.

Table 1

The numbering of Virtual Instrument button arranges as required.Press in signal and can carry this numbering, for the Virtual Instrument button that identification signal is corresponding, control.

Inertial navigation module, comprises three-axis gyroscope, three axle accelerators, motion process device, and the calculation of parameter that motion process device measures according to three-axis gyroscope and three axle accelerators goes out hypercomplex number and sends to controller.

What the inertial navigation module in the present embodiment adopted is the MPU-6050 chip of Invensense company.This chip has been integrated three-axis gyroscope and three axle accelerators, and the built-in digital moving processor (DMP:Digital Motion Processor) of processing complicated nine axle Motion fusion algorithms, gyroscope can survey scope be ± 250, ± 500, ± 1000, ± 2000(dps), accelerometer can survey scope be ± 2, ± 4, ± 8, ± 16g, can meet parameter acquisition of the present invention and computation requirement.

Controller, for gathering the hypercomplex number of pressing signal and the transmission of inertial navigation module of Keysheet module transmission and generating control signal.

The ShiST company that controller in the present embodiment adopts produces STM32F103RBT6 processor, this processor uses the RSIC kernel of ARM Cortex-M332 position, frequency of operation is 72Mhz, built-in high-speed memory, flash memory up to 128k byte, the functions such as ADC, timer are provided, have also comprised many communication interfaces as SPI, I2C, UART, USB, CAN bus etc. simultaneously.Fig. 4 is a kind of embodiment workflow schematic diagram of controller.As shown in Figure 4, the workflow of controller is:

S401: gather the hypercomplex number of pressing signal and the transmission of inertial navigation module that Keysheet module sends.

S402: whether judgement presses signal from knob button, if so, enters step S404, if not, step S403 entered.

S403: making increment of rotation is 0.

S404: continue to calculate knob increment, its computing method are:

From obtaining, press the signal t zero hour _sstart to the t finish time _e, every Δ t, calculate a knob increment D _n, Δ t is default time interval parameter, computing method are:

$D_n=\left\{\begin{array}{c}(\mathrm{ya}{w}_n-\mathrm{ya}{w}_{n-1})/K,t_0+n\&times;\mathrm{\&Delta;t}<t_e\\ (\mathrm{ya}{w}_e-\mathrm{ya}{w}_{n-1})/K,t_0+n\&times;\mathrm{\&Delta;t}\&GreaterEqual;t_e\end{array}\right.$

Wherein, n=1,2,3 ..., K represents scale-up factor, yaw _n-1, yaw _n, yaw _erepresent respectively t _s+ (n-1) * Δ t, moment t _s+ n * Δ t, press constantly t of signal ended _ecourse angle, by correspondence constantly inertial navigation module send to the hypercomplex number of controller to calculate, often obtain a knob increment D _nenter step S405.

Visible, a kind of gradual knob that the present invention realizes regulates, and starts, to pressing in signal ended process, every Δ t, to upgrade knob state in Virtual Instrument one time pressing signal, can the real-time monitored knob amplitude of accommodation thereby make to control personnel, improve the accuracy of controlling.If time interval parameter Δ t is set to one, is definitely greater than and presses constantly t of signal ended _evalue, controller only can calculate knob increment one time so, generates one time control signal.In actual applications, can carry out as required to determine the value of Δ t.

In the present embodiment, the computing formula of course angle is:

$\mathrm{yaw}=\mathrm{arcr}\tan \left(\frac{2(\mathrm{wz}+\mathrm{xy})}{1-2({\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA0000451077620000012.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+z^2)}\right)$

Wherein, w is the real part in hypercomplex number (w, x, y, z), x, and y, z is the imaginary part in hypercomplex number (w, x, y, z).

S405: generate control signal and send to wireless sending module, the form of the control signal adopting in the present embodiment is:

Button numbering

Knob increment

Button numbering represents according to the numbering of pressing the corresponding virtual instrument button that signal obtains.Visible, when button is numbered function button, knob increment is 0, only has when keyboard-coding is knob button, and knob increment is just meaningful.Usually, when knob increment is that timing represents that knob turns clockwise, negative expression is rotated counterclockwise.

Wireless sending module, for transmitting control signal to receiving end.The virtual instrument actuation means that the present invention is based on singlehanded key mouse can configure a wireless transmission buffer zone for wireless sending module, for storing the control signal not yet sending.

What in the present embodiment, wireless sending module adopted is NRF24L01 chip.NRF24L01 is the monolithic wireless transceiver chip of the ISM band that is operated in 2.4GHz～2.5GHz of being produced by NORDIC.It adopts FSK(Frequency-shift keying, frequency shift keying) modulation, Enhanced Short Burst agreement that inside is integrated, can realize radio communication point-to-point or a point-to-multipoint, fastestly can reach 2Mbps, and the propagation distance bit error rate far away is low.

Although above the illustrative embodiment of the present invention is described; so that those skilled in the art understand the present invention; but should be clear; the invention is not restricted to the scope of embodiment; to those skilled in the art; as long as various variations appended claim limit and definite the spirit and scope of the present invention in, these variations are apparent, all utilize innovation and creation that the present invention conceives all at the row of protection.

Claims (4)

1. the virtual instrument actuation means based on singlehanded key mouse, comprise transmitting terminal and receiving end, transmitting terminal transmits control signal, receiving end is connected with virtual instrument hardware device, the control signal receiving from transmitting terminal is transmitted to virtual instrument, it is characterized in that, described transmitting terminal comprises Keysheet module, inertial navigation module, controller, wireless sending module, wherein:

Keyboard load module, comprise function button and knob button, function button comprises single function button and multiplexing function button, wherein, single function button is corresponding to a function of Virtual Instrument, each operation in N operation of multiplexing function button represents respectively N mutual exclusion function of Virtual Instrument, and knob button is used to indicate the knob in Virtual Instrument; Each button can produce each button when pressing operation can produce the signal of pressing that carries corresponding virtual instrument button numbering when pressing operation, and Keysheet module will be pressed signal and send to controller;

Inertial navigation module, comprises three-axis gyroscope, three axle accelerators, motion process device, and the calculation of parameter that motion process device measures according to three-axis gyroscope and three axle accelerators goes out hypercomplex number and sends to controller;

Controller, the hypercomplex number of pressing signal and the transmission of inertial navigation module sending for gathering Keysheet module, when pressing signal from function button, generates corresponding function control signal and is sent to wireless sending module; When pressing signal from knob button, from obtaining, press the signal t zero hour _sstart to the t finish time _e, every Δ t, calculate a knob increment D _n, Δ t is default time interval parameter, computing method are:

$D_n=\left\{\begin{array}{c}(\mathrm{ya}{w}_n-\mathrm{ya}{w}_{n-1})/K,t_0+n\&times;\mathrm{\&Delta;t}<t_e\\ (\mathrm{ya}{w}_e-\mathrm{ya}{w}_{n-1})/K,t_0+n\&times;\mathrm{\&Delta;t}\&GreaterEqual;t_e\end{array}\right.$

Wherein, n=1,2,3 ..., K represents scale-up factor, yaw _n-1, yaw _n, yaw _erepresent respectively t _s+ (n-1) * Δ t, moment t _s+ n * Δ t, the finish time t _ecourse angle, by correspondence constantly inertial navigation module send to the hypercomplex number of controller to calculate, often obtain a knob increment D _ngenerate corresponding knob control signal and be sent to wireless sending module;

Wireless sending module, for transmitting control signal to receiving end.

2. virtual instrument actuation means according to claim 1, it is characterized in that, the virtual instrument function of each operational correspondence of described multiplexing function button adopts counter controls, counter is for recording the pressing operation number of times of multiplexing function button, the every increase of number of times once, by default virtual instrument functional sequence table, switch backward a function, if current function is that in sequence list, last and number of times add 1, return to first function of sequence list.

3. virtual instrument actuation means according to claim 1, is characterized in that, course angle yaw calculates as follows:

$\mathrm{yaw}=\mathrm{arcr}\tan \left(\frac{2(\mathrm{wz}+\mathrm{xy})}{1-2(y^2+z^2)}\right)$

Wherein, w is the real part in hypercomplex number (w, x, y, z), x, and y, z is the imaginary part in hypercomplex number (w, x, y, z).

4. virtual instrument actuation means according to claim 1, is characterized in that, also comprises a wireless transmission buffer zone, for storing the control signal not yet sending.

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