CN207780569U - The wireless manuscript controller of TV broadcast prompter - Google Patents

Abstract

The utility model discloses the wireless manuscript controllers of TV broadcast prompter, including panel, function key, power supply indicator, control module and power module；The panel is in cuboid, and the control module and power module are arranged in panel, and the function key, power supply indicator are arranged in panel upper surface, and power module, power supply indicator are arranged at the both ends of panel, and the control module setting is in the panel at the heart；The central processing unit is electrically connected with function key；Setting annulus spacing collar around function key is provided on the inside of the panel, buckle structure is arranged in side of the lower part far from top of the fixed part；The utility model provides a kind of easy to use, wireless manuscript controller of the high TV broadcast prompter of reliability and stability.

Description

The wireless manuscript controller of TV broadcast prompter

Technical field

The utility model is related to TV broadcast prompter fields, more specifically, it is related to the electricity of TV broadcast prompter Depending on the wireless manuscript controller for the word extractor that broadcasts.

Background technology

TV broadcast prompter is the necessary equipment of television program designing, which is mounted on before camera lens, uses Show the broadcast manuscript image of computer output, when television announcer towards television camera i.e. it can be seen that more apparent than on paper Manuscript image.In tv announcing, announcer needs the scrolling speed for controlling manuscript image consistent with the broadcast word speed of oneself, broadcasts It is exactly manuscript controller that sound person, which is used for controlling the word extractor component of word extractor manuscript image scrolling,.Domestic and international existing tv announcing carries Word device is removed come control computer manuscript image scrolling using machine elements such as keyboard, mouse, trace ball or game paddles There is no the dedicated manuscript controller of word extractor except this.These above-mentioned controller common features are all to use Photoelectric infrared switch.

Invention content

The utility model overcomes the deficiencies in the prior art, provides a kind of easy to use, and reliability and stability are high The wireless manuscript controller of TV broadcast prompter.

In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows：

The wireless manuscript controller of TV broadcast prompter, including panel, function key, power supply indicator, control module and Power module；The panel is in cuboid, and the control module and power module are arranged in panel, the function key, power supply Indicator light is arranged in panel upper surface, and power module, power supply indicator are arranged at the both ends of panel, and the control module setting exists At face plate center；The control module includes antenna, wireless module and central processing module, and the antenna and wireless module are electrical Connection, the wireless module is electrically connected with central processing module, and is controlled by it；The central processing module includes coding core Piece, decoding chip, usb bus are transferred chip, No. 18 pin of the decoding chip, No. 28 of usb bus switching chip No. 1 pin connection power supply of pin, wireless module, No. 4 pin of the wireless module are connect with antenna, wireless module No. 2 pin ground connection, No. 3 pin of wireless module and No. 14 pin of decoding chip connect；The of the decoding chip 15, the resistance of 200k Ω is connected between No. 16 pins, the 10th to 13, No. 8 pin of decoding chip is transferred with usb bus core respectively 15th to No. 19 pin of piece connects, and the 1st to No. 4 pin of decoding chip is connect with toggle switch, and No. 9 of decoding chip is drawn Foot is grounded；The other end of the toggle switch connect ground connection, the usb bus with No. 23 pin of usb bus switching chip 7th, No. 12 pin of switching chip is grounded, and connects crystal oscillator between the 13rd to No. 14 pin of usb bus switching chip, and in crystalline substance Shake both ends two capacitances in parallel, two capacitances indirectly；11st to No. 12 pin of usb bus switching chip is distributed with USB Device connects, and wherein one end of distributor ground connection, distributor is connect with USB, and No. 1 pin of USB connects diode, diode it is another One termination power；

1st to No. 4 pin of the coding chip is connect with toggle switch, and the 7th to 8,10 to No. 13 of coding chip is drawn Foot is connect with resistance, and the other end ground connection of resistance, one end and the function of the resistance are keyed, the 15th, No. 16 of coding chip The resistance of 1.2M Ω is connected between pin, No. 17 pin of coding chip and No. 3 pin of wireless module connect, and encode core One of No. 18 pin of piece and No. 1 pin, function key of wireless module are held, one end connection of LED light, and connect electricity The other end in source, the LED light is connect with 1k Ω resistance, the other end ground connection of 1k Ω resistance.

Further, the central processing module is electrically connected with function key；The function key include air pit, conductive part, Fixed part, keyboard portion and plastic rubber surface, above the centrally disposed processor of the air pit, the conductive part, fixed part, keyboard portion and Plastic rubber surface is arranged on air pit from bottom to top successively, the fixed part use rubber material, and the fixed part include top and under Portion, the top setting is in panels outside, and lower part is arranged on the inside of panel, and top is connect with lower part by skew wall；The face Setting annulus spacing collar around function key, side setting buckle of the lower part far from top of the fixed part are provided on the inside of plate Structure.

Further, the function key integrally uses cylinder.

Further, the lower part of the fixed part of the function key covers conductive part completely.

Further, the plastic rubber surface of the function key uses arc-shaped, and the keyboard portion uses duroplasts.

Advantage is the utility model compared with prior art：

The utility model is using wireless transmission control signal, so do not interfered by light, it in the sun still can be reliable and stable Ground operates with, so the wireless manuscript controller is more stable and reliable for performance than existing photoelectric controller.Currently, photoelectric controller has Directive property, that is to say, that infrared photo-emitter, which must be directed at infrared remote receiver, could effectively implement infrared remote control, and this practicality Any direction of the novel wireless manuscript controller in effective control distance can effectively implement wireless remote control, the advantage pair Television announcer is especially important, because can wireless manuscript controller is hidden during tv announcing, allows televiewer Remote controler in invisible announcer's hand exchanges sense to improve announcer and televiewer.

Description of the drawings

Fig. 1 is the structure chart of the utility model；

Fig. 2 is the press-button structure figure of the utility model；

Fig. 3 is the module frame chart of the utility model；

Fig. 4 is the coding and radio transmitter figure of the utility model；

Fig. 5 is the wireless receiving and decoding circuit figure of the utility model.

It is identified in figure：Panel 1, function key 2, air pit 21, conductive part 22, fixed part 23, keyboard portion 24, plastic rubber surface 25, electricity Source indicator light 3, control module 4 and power module 5.

Specific implementation mode

Specific implementation mode further illustrates the utility model below.

As shown in Figures 1 to 5, the wireless manuscript controller of TV broadcast prompter, including panel 1, function key 2, power supply Indicator light 3, control module 4 and power module 5.The panel 1 is in cuboid, and the control module 4 and the setting of power module 5 exist In panel 1, in 1 upper surface of panel, power module 5, the setting of power supply indicator 3 exist for the function key 2, the setting of power supply indicator 3 The both ends of panel 1, the control module 4 are arranged at 1 center of panel, take full advantage of overall space in this way.The control mould Block 4 includes antenna, wireless module and central processing unit, and the antenna is electrically connected with wireless module, and the wireless module is in Central processor is electrically connected, and is controlled by it, and general central processing unit uses ARM9 processors, efficient at low cost, The characteristics of good compatibility.

The central processing module include coding chip, decoding chip, usb bus switching chip, the decoding chip No. 1 pin connection power supply of No. 18 pin, No. 28 pin of usb bus switching chip, wireless module, the wireless mould No. 4 pin of block is connect with antenna, No. 2 pin ground connection of wireless module, No. 3 pin and decoding chip of wireless module No. 14 pin connection；Connect the resistance of 200k Ω between 15th, No. 16 pin of the decoding chip, the of decoding chip 10 to 13, No. 8 pins are connect with the 15th to No. 19 pin of usb bus switching chip respectively, and the 1st to No. 4 of decoding chip is drawn Foot is connect with toggle switch, No. 9 pin ground connection of decoding chip；The other end of the toggle switch and usb bus switching core No. 23 pin connection ground connection of piece, the 7th, No. 12 pin ground connection of the usb bus switching chip, usb bus switching chip The 13rd to No. 14 pin between connect crystal oscillator, and in crystal oscillator both ends two capacitances in parallel, two capacitances indirectly；USB is total 11st to No. 12 pin of line switching chip is connect with USB distributor, and wherein one end ground connection of distributor, distributor connects with USB It connects, No. 1 pin of USB connects diode, another termination power of diode.

Specific is as shown in figure 4, the circuit is opened by PT2272 decoding integrated circuits, wireless receiving module, by parallel button OFF signal is converted into the converter CH341A of usb signal, USB power source power supply circuit and usb signal is output to two calculating The USB distributor of machine forms.

The coding that PT2272 address pins connect address coding toggle switch is identical as PT2262, the oscillation of decoding integrated circuit Resistance R1 is 200K, is matched with PT2262 coded integrated circuits oscillation resistances 1.2M, the coding letter that coding chip PT2262 is sent out Number by：Address code, numeric data code, synchronous code form a complete code word, after decoding chip PT2272 receives signal, address Code after comparing verification twice, and VT feet just export high level, and at the same time corresponding data pin TE also exports high level；315M Wireless receiving module and transmitting module are mating, and receiving module can be received steadily without any adjustment.Receiving module has 4 to draw Foot, pin 1 meet+5 power vd D, and pin 2 connects power ground, and pin 3 meets PT2272 decoding output TE, and pin 4 connects antenna；USB is converted The function of device CH341A be the D0 corresponding with button that exports PT2272 D1 D2 D3 and D4 parallel signals change into usb signal, Usb signal is divided into two tunnels through USB distributor, is coupled with 2 computers, and can be controlled by being achieved in a decoding circuit by 2 Computer is run simultaneously, and to realize that duplex computer synchronizes Hot Spare, when computer corruption, which can meet an urgent need, is switched to another meter Calculation machine continues broadcast prompt.

CH341A converters 13,14 pins connect 12M crystal oscillating circuits, and the circuit is by 2 25P capacitances and 12M crystal groups At the synchronizing signal of output 12M resonant frequencies.

USB distributor is in parallel by two groups be made of T1 and T2, T3 and T4NPN types triode and emitter resistance R2, R3 Dijection forms, and the serial signal UD+ and UD- that CH341A pins 10,11 export are coupled with each group emitter follower base stage, from penetrating With device export 2 UD+ and 2 UD- usb signal connect computer 1 and computer 2 through 2 USB plugs, USB socket.Emitter following Device input impedance is big, be easy matched with CH341A, since emitter follower output impedance is low, long-line transmission signal amplitude decay compared with Gently, and the low strong antijamming capability of signal impedance, transmission is reliable and stable, and compared with infrared controller, word extractor computer is not easy Malfunction and misaction.

Decoding circuit power-supply system：Decoder power supply is provided by the 5V power supplys that computer USB socket 1 exports, due to 2 meters Calculation machine is powered by USB socket to decoding circuit source, to prevent electric current from flowing into the computer that 5V power supplys are slightly lower or shut down, per road The 5V power supplys of USB outputs are connected to decoding circuit again through diode, due to the unilateal conduction performance of diode, can prevent computer The high electric current of USB voltages flows into the low computer of USB voltages, it is ensured that power-supply system safety.

1st to No. 4 pin of the coding chip is connect with toggle switch, and the 7th to 8,10 to No. 13 of coding chip is drawn Foot is connect with resistance, and the other end ground connection of resistance, one end and the function of the resistance are keyed, the 15th, No. 16 of coding chip The resistance of 1.2M Ω is connected between pin, No. 17 pin of coding chip and No. 3 pin of wireless module connect, and encode core One of No. 18 pin of piece and No. 1 pin, function key of wireless module are held, one end connection of LED light, and connect electricity The other end in source, the LED light is connect with 1k Ω resistance, the other end ground connection of 1k Ω resistance.

It is specific as shown in figure 5, the circuit by 6 touch noiseless button, PT2262 coded integrated circuits, 10K*5 resistor chains, The compositions such as 4 toggle switch, wireless transmitter module and the LED power indicator lights for address coding.To prevent actuation of keys from making an uproar Sound enters microphone, using touching noiseless button；To prevent from, not by circuit power consumption when key pressing, pressing using double groups of normally opened contacts Key, each button have two groups of normally opened contacts, one of which normally opened contact to input the anode for terminating at battery 12, and output end is through RC electricity Power filter connects the power input of PT2262 coding modules and wireless transmitter module.When not pressing key pressing, battery and electricity Source input terminal disconnects, down circuitry, not power consumption；Another group of one termination+12V power input of normally opened contact, the other end connect respectively To PT2262 coding circuit input terminal D0, D1, D2, D3, D4, button 13 and button 14 are all Pause key, so this two bonded In an input terminal；The public termination 12V power grounds of 10K*6 resistor chains, output end connect respectively input terminal D0, D1 of PT2262, D2, D3 and D4.The oscillation resistance of PT2262 is 1.2M, and address pin connects 4 bit address coding toggle switch.It is defeated when not pressing key pressing It is 0 level to enter end all.PT2262's；Wireless transmitter module uses sound table resonator SAW, resonant frequency 315M.Sound table resonance Device is simple and reliable for structure, and frequency drift very little when variation of ambient temperature, about 3ppm C fully meet the requirement of this remote controler.Wirelessly Transmitting module has 4 pins, pin 1 to connect+12V power supplys, and pin 2 meets+12V power ground GND, and pin 3 meets coding module PT2262 Coding output end Dout, pin 4 connects wireless transmitter module antenna.When not pressing key pressing, anode and the coding electricity of battery 21 The RC filter power supply input terminals on road disconnect, coding circuit power-off.When arbitrarily pressing key pressing ,+12V power supply RC filter circuits are connected The anode of battery 21, coding circuit connect electricity, and when having by key pressing, PT2262 work once electrifieds, the 17th foot exports modulated Serial data pulse signal is output to the pin 3 of wireless transmitter module, when the high frequency of 17 foot Dout 315MHz between high period Radiating circuit starting of oscillation simultaneously emits constant amplitude high-frequency signal, when the high frequency transmission circuit stopping that 17 foot Dout are low flat period 315MHz is shaken It swings, so high frequency transmission circuit is controlled by the Dout digital signals of 17 feet of PT2262, to complete modulation degree to high-frequency circuit It is modulated for 100% modulation keying ASK, and thus completes the coding and AM amplitude modulation wireless transmissions of keying signal.

The central processing unit is electrically connected with function key 2, to carry out control signal transmission to centre by function key 2 Device is managed, then information is sent out by central processing unit.The function key 2 includes air pit 21, conductive part 22, fixed part 23, keyboard portion 24 With plastic rubber surface 25.Above 21 centrally disposed processor of the air pit, the conductive part 22, fixed part 23, keyboard portion 24 and modeling Glue surface 25 is arranged on air pit 21 from bottom to top successively, and to press function key 2 by user, conductive part 22 is depressed at air pit 21 Turning circuit, and then issue instructional information to central processing unit.The fixed part 23 uses rubber material, and the fixed part 23 wraps Upper and lower part is included, the top setting is in 1 outside of panel, and lower part setting is in 1 inside of panel, and top passes through skew wall with lower part Connection.1 inside of the panel is provided with setting annulus spacing collar around function key 2, and the lower part of the fixed part 23 is far from upper Buckle structure is arranged in the side in portion.

Preferably, the function key 2 is whole using cylindrical.The lower part of the fixed part 23 of the function key 2 is covered completely Firmly conductive part 22.The use of plastic rubber surface 25 of the function key 2 is arc-shaped, and the keyboard portion 24 uses duroplasts, can prolong significantly The accuracy of long life and keypress function.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art Art personnel can also make several improvements and modifications without departing from the concept of the premise utility, these improvements and modifications Also it should be regarded as in scope of protection of the utility model.

Claims (5)

1. the wireless manuscript controller of TV broadcast prompter, which is characterized in that including panel, function key, power supply indicator, control Molding block and power module；The panel is in cuboid, and the control module and power module are arranged in panel, the function Key, power supply indicator are arranged in panel upper surface, and power module, power supply indicator are arranged in the both ends of panel, the control mould Block setting is in the panel at the heart；The control module includes antenna, wireless module and central processing module, the antenna with it is wireless Module is electrically connected, and the wireless module is electrically connected with central processing module, and is controlled by it；The central processing module packet Include coding chip, decoding chip, usb bus switching chip, No. 18 pin, the usb bus switching chip of the decoding chip No. 28 pin, wireless module No. 1 pin connect power supply, No. 4 pin of the wireless module connect with antenna, nothing No. 2 pin of wire module is grounded, and No. 3 pin of wireless module and No. 14 pin of decoding chip connect；The decoding The resistance of 200k Ω is connected between 15th, No. 16 pin of chip, the 10th to 13, No. 8 pin of decoding chip is total with USB respectively The 15th to No. 19 pin connection of line switching chip, the 1st to No. 4 pin of decoding chip are connect with toggle switch, decoding chip No. 9 pin ground connection；The other end of the toggle switch connect ground connection, institute with No. 23 pin of usb bus switching chip The the 7th, No. 12 pin ground connection of usb bus switching chip is stated, is connected between the 13rd to No. 14 pin of usb bus switching chip brilliant Shake, and in crystal oscillator both ends two capacitances in parallel, two capacitances indirectly；11st to No. 12 pin of usb bus switching chip It being connect with USB distributor, wherein one end ground connection of distributor, distributor is connect with USB, and No. 1 pin of USB connects diode, Another termination power of diode；

1st to No. 4 pin of the coding chip is connect with toggle switch, the 7th to 8,10 to No. 13 pin of coding chip with Resistance connects, and the other end ground connection of resistance, one end and the function of the resistance are keyed, the 15th, No. 16 pin of coding chip Between connection 1.2M Ω resistance, No. 17 pin of coding chip and No. 3 pin of wireless module connect, coding chip One of No. 1 pin, function key of No. 18 pin and wireless module are held, one end connection of LED light, and connect power supply, The other end of the LED light is connect with 1k Ω resistance, the other end ground connection of 1k Ω resistance.

2. the wireless manuscript controller of TV broadcast prompter according to claim 1, it is characterised in that：The centre Module is managed to be electrically connected with function key；The function key includes air pit, conductive part, fixed part, keyboard portion and plastic rubber surface, the gas It cheats above centrally disposed processor, the conductive part, fixed part, keyboard portion and plastic rubber surface are arranged from bottom to top in air pit successively On, the fixed part uses rubber material, and the fixed part includes upper and lower part, and the top is arranged in panels outside, under Portion is arranged on the inside of panel, and top is connect with lower part by skew wall；It is provided with around function key and is arranged on the inside of the panel Buckle structure is arranged in side of the lower part far from top of annulus spacing collar, the fixed part.

3. the wireless manuscript controller of TV broadcast prompter according to claim 2, it is characterised in that：The function key It is whole to use cylinder.

4. the wireless manuscript controller of TV broadcast prompter according to claim 3, it is characterised in that：The function key The lower part of fixed part cover conductive part completely.

5. the wireless manuscript controller of TV broadcast prompter according to claim 3, it is characterised in that：The function key Plastic rubber surface using arc-shaped, the keyboard portion uses duroplasts.