The IPTV comprehensive tester
Technical field
The utility model provides a kind of IPTV comprehensive tester, belongs to technical field of telecommunications.
Background technology
IPTV be a kind of be display terminal with domestic television set or PC, the abundant in content multimedia service business that comprises TV programme is provided by the Internet.IPTV is the fusion of computer, communication, multimedia and the brand-new technology of household appliances, and it makes the service of ISP network obtain increment, steps into benign cycle bringing brand-new interactive video content to enjoy to the user when.
The access way of IPTV mainly contains the xDSL access at present, LAN such as category-5 cable insert, optical fiber connecting method, wherein LAN access waies such as xDSL access and category-5 cable are the most general, but they also are faced with bigger problem, IPTV is in operation, will face following problem in the maintenance: 1, can reach the set goal after the IPTV network deployment? can network carry the number of users of expection? 2, in the IPTV network, on earth where bottleneck? it is server? incoming end or bearer network? 3, when number of users increases, does user's video quality reduce? how to evaluate? 4, after network carries out parameter adjustment, what influence the user is there? at the problems referred to above, we have developed the IPTV tester, and applied for utility model patent on May 16th, 2007: the IPTV tester, obtained patent right on March 19th, 2008, the patent No. is: 200720022229, technology contents is: comprise PC and connected xDSL module, digital multimeter, it is characterized in that: set up power management module, circuit access control module and hub, wherein PC connects power management module and circuit access control module by the I/O mouth, connects hub by Ethernet interface.This tester comprises test the test of access way and link performance and IPTV business tine quality.Though the user experience quality parameter that this instrument can test I PTV, various access waies that again can test I PTV business can not be carried out the emulation of set-top box, can not reduce to television image, test not intuitively, and its service behaviour needs further improvement.
The utility model content
The purpose of this utility model provide a kind of can overcome above-mentioned defective, multiple functional, test IPTV comprehensive tester intuitively.
Its technical scheme is:
Comprise the IPTV tester, it is characterized in that: set up IPTV set-top box, display, energy supply control module and battery, wherein tester network interface correspondence is connected with the network interface of IPTV set-top box, the Voice ﹠ Video output port correspondence of IPTV set-top box connects the Voice ﹠ Video input port of display, energy supply control module connects battery and AC power respectively, and is IPTV set-top box, display and the power supply of IPTV tester.
Described IPTV comprehensive tester, the IPTV tester comprises PC, power management module, hub, xDSL module, digital multimeter and circuit access control module, wherein PC connects power management module and circuit access control module by the I/O mouth, connect hub by Ethernet interface, two network interface correspondences of hub connect the network interface of xDSL module and IPTV set-top box, and power management module connects the 7.6V power output end of energy supply control module.
Described IPTV comprehensive tester, energy supply control module comprises AC power interface CON1, battery port CON2, power transfer module U1-4, optocoupler A1-2, triode Q, relay J, K switch, resistance R 1-3, LED and capacitor C, wherein AC power interface CON1 connects the input that 220v changes the input of 12v power transfer module U1 and meets optocoupler A1-2 through resistance R 1 respectively, the output of power transfer module U1 is succeeded an end of electrical equipment J contact respectively, 12v changes 5v power transfer module U2 input and 12v changes 7.6v power transfer module U4, the output termination 5v of power transfer module U2 changes the input of 3.3v power transfer module U3, battery port CON2 succeeds the other end of electrical equipment J contact through K switch, the coil of relay J connects the collector electrode of triode Q, the grounded emitter of triode Q, its base stage connects the output of optocoupler A1-2 respectively through resistance R 2, through capacitor C ground connection, through resistance R 3 and LED ground connection, the 7.6v power output end of power transfer module U4 connects power management module successively.
Described IPTV comprehensive tester, power management module comprises triode Q2~Q3 and relay K 2~K3, wherein the base stage of triode Q2 connects a control lead-in wire of PC, its grounded emitter, its collector electrode connects+the 5V power supply through the control coil of relay K 2, the centre tap of relay K 2 connects the output 7.6V power supply of power transfer module U4, its normally closed tap is unsettled, it often opens the power input that the xDSL module is received in tap, the base stage of triode Q3 connects another control lead-in wire of PC, its grounded emitter, its collector electrode connects+the 5V power supply through the control coil of relay K 3, the centre tap of relay K 3 connects the 7.6V power supply, and its normally closed tap is unsettled, and it often opens the power input that tap connects digital multimeter.
Described IPTV comprehensive tester, circuit access control module comprises triode Q1 and relay K 1, wherein the base stage of triode Q1 connects the 3rd control lead-in wire of CPU, its grounded emitter, its collector electrode connects+the 5V power supply through the control coil of relay K 1, the centre tap of relay K 1 is received p-wire IN1 and p-wire IN2 respectively, the normally closed tap L1~L2 correspondence of relay K 1 is received the telephone wire of xDSL module, and the tap L1 '~L2 ' correspondence of often opening of relay K 1 is received on 2 p-wires of digital multimeter.
The utility model compared with prior art on the basis of original IPTV tester test function, has increased IPTV set-top box and display, has realized the emulation of set-top box and to the restoring function of television image, test is directly perceived, and is multiple functional, excellent working performance.
Description of drawings
Fig. 1 is a fundamental diagram of the present utility model.
Fig. 2 is power management module and the line map that is connected embodiment with CPU.
Fig. 3 is circuit access control module and the line map that is connected embodiment with CPU.
Fig. 4 is the circuit diagram of energy supply control module.
Embodiment
1, CPU 2, power management module 3, hub 4, xDSL module 5, digital multimeter 6, circuit access control module 7, IPTV set-top box 8, display 9, energy supply control module 10, battery
In the embodiment shown in Fig. 1~4: hub 3 is general hub (Hub), have 3 network interfaces, a network interface connects the Ethernet interface of CPU 1, another network interface connects the Ethernet interface of xDSL module 4, the 3rd network interface is connected with the network interface of IPTV set-top box 7, and the Voice ﹠ Video output port correspondence of IPTV set-top box 7 connects the Voice ﹠ Video input port of display 8.CPU 1 is general computer, its I/0 control lead-in wire P2 connects the base stage of triode Q2 in the power management module 2, the grounded emitter of triode Q2, its collector electrode connects+the 5V power supply through the control coil of relay K 2, the centre tap of relay K 2 connects the 7.6V power output end of energy supply control module 9, normally closed tap is unsettled, it often opens the power input V1 that xDSL module 4 is received in tap, another control lead-in wire P3 of CPU 1 connects the base stage of triode Q3 in the power management module 2, the grounded emitter of triode Q3, its collector electrode connects+the 5V power supply through the control coil of relay K 3, the centre tap of relay K 3 connects the 7.6V power supply, its normally closed tap is unsettled, it often opens the power input V2 that tap connects digital multimeter 5, the base stage of triode Q1 in the 3rd the I/O control lead-in wire P1 link access control module 6 of CPU, the grounded emitter of triode Q1, its collector electrode connects+the 5V power supply through the control coil of relay K 1, the centre tap of relay K 1 is received p-wire IN1 and line IN2 to be tested respectively, the telephone wire that the normally closed tap L1 of relay K 1 and L2 correspondence are received xDSL module 4, relay K 1 often open tap L1 ' and L2 ' correspondence is received on 2 p-wires of digital multimeter 5; The AC power interface CON1 of energy supply control module 9 connects the input that 220v changes the input of 12v power transfer module U1 and meets optocoupler A1-2 through resistance R 1 respectively, the output of power transfer module U1 is succeeded an end of electrical equipment J contact respectively, 12v changes 5v power transfer module U2 input and 12v changes 7.6v power transfer module U4, the output termination 5v of power transfer module U2 changes the input of 3.3v power transfer module U3, battery port CON2 succeeds the other end of electrical equipment J contact through K switch, the coil of relay J connects the collector electrode of triode Q, the grounded emitter of triode Q, its base stage connects the output of optocoupler A1-2 respectively through resistance R 2, through capacitor C ground connection, successively through resistance R 3 and LED ground connection, entire I PTV tester and set-top box 7, the power supply of display 8.
Like this, CPU 1 usefulness high-low level control relay K2 and relay K 3 realizes the control to xDSL module 4 and digital multimeter 5 on/offs; CPU 1 usefulness high-low level controls line IN1 to be tested and which test module p-wire IN2 is linked into; The serial ports 1 of CPU 1 connects the RS232 mouth of xDSL module 4 and realizes data communication, and the serial ports 2 of CPU 1 connects the RS232 serial ports of digital multimeter 5 and realizes data communication.When the IPTV signal carried out the video reduction by IPTV set-top box 7 and display 8, the IPTV comprehensive tester can carry out index test to the IPTV signal.