CN208971666U - A kind of video image transmission system - Google Patents

Abstract

The utility model provides a kind of video image transmission system, it is characterized in that, it includes video capture device, data transmission set and display equipment, video capture device includes camera, wireless network card, voltage controlled oscillator and wireless sending module, the output end of camera is connect with the input terminal of the first wireless network card, data transmission set includes RFID handheld terminal, wireless repeater, outer machine and display equipment, RFID handheld terminal and wireless repeater communicate to connect, outer machine includes wireless network card, voltage controlled oscillator and wireless sending module, the communication connection of wireless repeater wireless receiving module, outer machine passes through wireless sending module and display equipment communication connection；The utility model advantage is: QCA9582 built in system handles chip, converts digital signals into WiFi signal, effectively improves the diffraction performance of equipment, equipment is made to have good transmission of video effect under office block, the complex environments such as subway.

Description

A kind of video image transmission system

Technical field

The utility model relates to be wirelessly transferred more particularly to a kind of video image transmission system.

Background technique

Currently available technology is transmitted using wireless self-networking, each single-point under spacious environment transmission range in 2KM or so, But it is undesirable in practical applications.Mainly have the disadvantage that:

1. through-wall performance is insufficient, the transmission range in normal office building is no more than 50M.

2. the hand-held set size and weight with equipment holder are too big, and are wired connection with video camera.

3. the equipment of relaying bridge joint signal does not have quick-fried sudden strain of a muscle indicator light, personnel can not know that equipment exists after discharging trunking Which position.

4. user of service is as it should be understood that signal strength or weakness, it is necessary to check the signal lamp in equipment, in practical applications It is difficult that personnel is allowed to go.

Existing equipment is because WiFi signal power amplification still based on the upgrade version of WiFi technology, has been done one by its equipment The bridge joint of signal.The wireless router of its through-wall performance and a high power version is very close.And due to technical reason, equipment Size can not allow carrier satisfied always.Often because pursuing the high property through walls of high-performance removes hoisting power, it is big to promote antenna It is small.Caused by result be exactly that equipment heating amount is very big, energy consumption increases, and volume is multiplied.

Utility model content

The purpose of the utility model is to provide a kind of video image transmission systems.

To achieve the goals above, the technical solution of the utility model is:

A kind of video image transmission system, which is characterized in that it includes video capture device, data transmission set and display Equipment, the video capture device include a camera, a wireless network card, a voltage controlled oscillator and a wireless sending module, institute The output end for stating camera is connect with the input terminal of the first wireless network card, the data transmission set include RFID handheld terminal, The receiving end of wireless repeater, outer machine and display equipment, the RFID handheld terminal and wireless repeater communicates to connect, described outer Machine includes a wireless network card, a voltage controlled oscillator and a wireless sending module, the transmitting terminal of the wireless repeater and outer machine Wireless network card communication connection, the outer machine pass through wireless sending module and display equipment communication connection；

Wherein, 29,30,31,32 feet of the wireless network card are separately connected 1,3,6,8 feet of voltage controlled oscillator, the pressure 1,3,6,8 feet of control oscillator are separately connected pull-up resistor；

35,36,18, the 17 of the wireless network card are separately connected 1,3,6,8 feet of wireless sending module, the wireless transmission 1,3,6,8 feet of module are separately connected pull-up resistor, and 14,16 feet of the wireless sending module connect WiFi antenna.

Further, the model QCA9582 of the wireless network card.

Further, the inside of the video capture device and outer machine is equipped with DC power supplier, the DC power supply Module is 5V power supply, and the output end of the DC power supplier and 6 feet of wireless network card connect.

Further, the RFID handheld terminal, wireless repeater and outer machine are equipped with MESH antenna and charging interface, institute It states RFID handheld terminal and outer machine is additionally provided with WiFi antenna, the wireless repeater is additionally provided with flashing light.

Further, the wireless repeater uses PI3EQX6801ZDE chip.

Further, the voltage controlled oscillator is MC1648, and the wireless sending module is PL1167.

Further, the display equipment is tablet computer.

Utility model has the advantages that QCA9582 built in system handles chip, WiFi letter is converted digital signals into Number, WiFi signal is externally emitted by radiofrequency launcher, WiFi signal transmits the diffraction performance for effectively improving equipment, doing equipment There is good transmission of video effect in public building under the complex environments such as subway, in fire-fighting and rescue, the fields such as law enforcement tracking have compared with For actual application.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the connection schematic diagram of wireless network card in the utility model；

Fig. 3 is the schematic diagram of RFID handheld terminal in the utility model；

Fig. 4 is the schematic diagram of the utility model China and foreign countries machine；

Fig. 5 is the schematic diagram of wireless repeater in the utility model.

Appended drawing reference:

1 video capture device, 2 camera, 3 data transmission set, 4 RFID handheld terminal, 5 wireless repeater

6 outer machines 7 show 8 DC power supplier of equipment

U1 wireless network card U2 wireless sending module U3 voltage controlled oscillator

R1 ~ 10 first ~ the tenth resistance

C1 ~ 4 first ~ the 4th capacitor

9 MESH antenna, 10 charging interface, 11 signal strength indicator light, 12 signal prompt lamp

13 capacity prompt lamp, 14 flashing light, 15 WiFi antenna.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

A kind of video image transmission system, which is characterized in that as shown in Figure 1, it includes video capture device 1, data biography Transfer device 3 and display equipment 7, the video capture device 1 include a camera 2, a wireless network card U1, a voltage controlled oscillator U3 It is PL1167 with wireless sending module a U2, the wireless sending module U2, the voltage controlled oscillator U3 is MC1648, described to take the photograph As first 2 output end is connect with the input terminal of the first wireless network card U1, the data transmission set 3 include RFID handheld terminal 4, Wireless repeater 5, outer machine 6 and display equipment 7, data transmission set 3 carry out data communication, institute by 580M radio frequency between each other The receiving end for stating RFID handheld terminal 4 and wireless repeater 5 communicates to connect, and wireless repeater 5 uses PI3EQX6801ZDE radio frequency IC chip, meets 580M radio frequency transmission demand, and the outer machine 6 includes a wireless network card U1, a voltage controlled oscillator U3 and one wireless The wireless network card U1 of sending module U2, the transmitting terminal of the wireless repeater 5 and outer machine 6 is communicated to connect, and the outer machine 6 passes through nothing Line sending module U2 and display equipment 7 communicate to connect.

As shown in Fig. 3 ~ Fig. 5, RFID handheld terminal 4, wireless repeater 5 and outer machine 6 are respectively provided with MESH antenna 9 and charging A row totally four green signal strength indicator lights are respectively set in 10, RFID of mouth handheld terminal 4, wireless repeater 5 and outer machine 6 11, by the bright number of lamp show current device electricity how much, four lamp all lights indicate signal it is most strong, RFID handheld terminal 4, nothing Line repeater 5 and outer machine 6 are additionally provided with a signal prompt lamp 12 and a capacity prompt lamp 13, and capacity prompt lamp 13 is tri coloured lantern, green Lamp shows that electricity is 80% or more, and amber light indicates electricity 20% ~ 80%, and then electricity is 10% ~ 20% to red light.

RFID handheld terminal 4 and outer machine 6 are additionally provided with WiFi antenna 15, wireless network card U1 in the video capture device 1 The WiFi antenna 15 of set WiFi antenna 15 and RFID handheld terminal 4 communicates to connect, the MESH antenna of RFID handheld terminal 4 9 communicate to connect with the MESH antenna 9 of wireless repeater 5, additional flashing light 14 of the setting for warning of wireless repeater 5, wirelessly The MESH antenna 9 of the MESH antenna 9 of repeater 5 and outer machine 6 communicates to connect, in outer machine 6 WiFi days set by wireless network card U1 Line 15 and display equipment 7 communicate to connect.

As shown in Fig. 2, the model QCA9582 of the wireless network card U1, is with highly integrated AP and to support The 5GWi-Fi module of 802.11a/n/ac agreement, be integrated with multi-protocols MAC, PHY, D and D/A converter (ADC/DAC), Wireless transceiver and PCIE interface, have the characteristics that size is small, small power consumption, the wireless network card U1 29,30,31, 32 feet are separately connected 1,3,6,8 feet of voltage controlled oscillator U3, and 1,3,6,8 feet of the voltage controlled oscillator U3 are separately connected first ~ 4th resistance R1 ~ 4, the first ~ the 4th resistance R1 ~ 4 connect simulation positive supply as 5 feet of pull-up resistor and voltage controlled oscillator U3 AVDD, wherein 1,3 feet are data output pins, for the working condition and work to wireless network card U1 feedback voltage controlled oscillator U3 Frequency, 6,8 feet are data receiver pin, for receiving the signal of wireless network card U1,29,30,31, the 32 of the wireless network card U1 Foot is P1.23, P1.24, P1.25, P1.26 foot, described using voltage controlled oscillator U3 come the frequency of stability contorting wireless network card U1 5 feet of voltage controlled oscillator U3, i.e. counting pin meet first capacitor C1, the first capacitor C1 ground connection, and first capacitor C1 plays filter Wave, the effect for protecting voltage controlled oscillator U3,13 pins of the voltage controlled oscillator U3, i.e. field controlled thyristor MCT pin connect the 9th Resistance R9, the 9th resistance R9 connect third capacitor C3, the third capacitor C3 ground connection, the 9th resistance R9 and third capacitor C3 string It is combined in low-pass filtering.

The wireless sending module U2 is PL1167, and 35,36,18,17 feet of the wireless network card U1 are separately connected wirelessly 1,3,6,8 feet of sending module U2, the wireless network card U1 35,36,18,17 be respectively P1.28, P1.29, p1.30, 1,3,6,8 feet of P1.31 foot, the wireless sending module U2 are separately connected the 5th ~ the 8th resistance R5 ~ 8, the 5th ~ the 8th resistance R5 ~ 8 connect simulation positive supply AVDD, 14,16 feet of wireless sending module U2 as 5 feet of pull-up resistor and wireless sending module U2 The externally output 2.4GWiFi signal of WiFi antenna 15 is connect, correspondingly, 68 or 80 feet of wireless network card U1 connect MESH antenna 9, The MESH antenna 9 of RXD0 and RXD1 foot is used to receive external radiofrequency signal, and 5 feet of the wireless sending module U2 connect the second electricity Hold C2, the second capacitor 2 ground connection plays the role of filtering, protection wireless sending module U2, and the 13 of the wireless sending module U2 are drawn Foot, i.e. field controlled thyristor MCT pin meet the 9th resistance R9, and the 9th resistance R9 meets third capacitor C3, the third capacitor C3 Ground connection, the 9th resistance R9 and third capacitor C3 series connection are used for low-pass filtering.

Since QCA9582 need to only connect the power supply of 5V, the inside of the video capture device 1 and outer machine 6 is equipped with direct current Power module 8, the DC power supplier 8 are 5V power supply, the output end of the DC power supplier 8 and the 6 of wireless network card U1 Foot connection.

The display equipment 7 is tablet computer, and camera 2 and tablet computer pass through 2.4G WiFi signal and data pass Transfer device 3 connects.

When it is implemented, video capture device 1 and data transmission set 3 are by the identical equipment in discovery network as the One step, equipment detect frame by active transmission Probe Request to collect neighbor information, include in Beacon or Probe frame ID, Configuration and security capabilities relevant information, equipment is from Beacon the or Probe Response frame received The profile information for parsing inchoation equipment, is matched with the profile information of this section, only the profile as scanning both sides When matching, both sides just establish neighbor information.

Data transmission set 3 carries out data communication by 580M radio frequency, and camera 2 and tablet computer pass through 2.4G WiFi Signal is connect with transmission device, and identifies all devices mutually in same local area network by way of setting fixed ip address Access.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims (7)

1. a kind of video image transmission system, which is characterized in that it includes that video capture device, data transmission set and display are set Standby, the video capture device includes a camera, a wireless network card, a voltage controlled oscillator and a wireless sending module, described The output end of camera is connect with the input terminal of the first wireless network card, and the data transmission set includes RFID handheld terminal, nothing The receiving end of line repeater, outer machine and display equipment, the RFID handheld terminal and wireless repeater communicates to connect, the outer machine Including a wireless network card, a voltage controlled oscillator and a wireless sending module, the nothing of the transmitting terminal of the wireless repeater and outer machine The connection of gauze cartoon letters, the outer machine pass through wireless sending module and display equipment communication connection；

Wherein, 29,30,31,32 feet of the wireless network card are separately connected 1,3,6,8 feet of voltage controlled oscillator, the voltage-controlled vibration 1,3,6,8 feet for swinging device are separately connected pull-up resistor；

35,36,18, the 17 of the wireless network card are separately connected 1,3,6,8 feet of wireless sending module, the wireless sending module 1,3,6,8 feet be separately connected pull-up resistor, 14,16 feet of the wireless sending module connect WiFi antenna.

2. a kind of video image transmission system according to claim 1, which is characterized in that the model of the wireless network card QCA9582。

3. a kind of video image transmission system according to claim 2, which is characterized in that the video capture device and outer The inside of machine is equipped with DC power supplier, and the DC power supplier is 5V power supply, the output end of the DC power supplier It is connect with 6 feet of wireless network card.

4. a kind of video image transmission system according to claim 1, which is characterized in that the RFID handheld terminal, nothing Line repeater and outer machine are equipped with MESH antenna and charging interface, and the RFID handheld terminal and outer machine are additionally provided with WiFi antenna, The wireless repeater is additionally provided with flashing light.

5. a kind of video image transmission system according to claim 1, which is characterized in that the wireless repeater uses PI3EQX6801ZDE。

6. a kind of video image transmission system according to claim 1, which is characterized in that the voltage controlled oscillator is MC1648, the wireless sending module are PL1167.

7. a kind of video image transmission system according to claim 1, which is characterized in that the display equipment is plate electricity Brain.