KR100763220B1 - Power supply interface apparatus for mobile station testing device - Google Patents

Abstract

A power supply interface apparatus for a mobile station testing device is provided to control automatically the power of a mobile station used for a test by hardware and software in a remote place, thereby minimizing the inconvenience due to manually manipulating. A power supply interface apparatus for a mobile station testing device comprises the followings: a switching unit(36) which is located between an external power supply and power supply terminal pin for supplying external power to a mobile station; an operating unit(34) for operating the switching unit; a tri-status buffer(38), which is located in an input/output terminal of the mobile station, for controlling an initialization terminal pin to tri-statuses; and a controlling unit(30) for controlling the tri-status buffer and the operating unit.

Description

Power supply interface apparatus for mobile station testing equipment

1 is a schematic configuration diagram of a mobile station test equipment to which the power interface device of the present invention can be applied;

2 is a diagram showing the function of each pin in the input / output standard connection terminal,

3 is a block diagram of a power interface device of the present invention;

FIG. 4 is a flowchart for describing an operation of the power interface device shown in FIG. 3.

*** Explanation of symbols for the main parts of the drawing ***

10, 10-1, 10-2, 10-3, 10-4, 10-n: mobile station,

20: GPS module, 22: GPS line,

30, 30-1, 30-2, 30-3, 30-4, 30-n: phone control module,

40: DPRAM, 42: DPRAM line,

50: integrated control module, 60: flash disk,

70: host PC, 80: Ethernet,

82: Ethernet line

The present invention relates to a power interface device for mobile station test equipment, and more particularly, to a power interface device for mobile station test equipment that can remotely and automatically control the power of a mobile station used for testing.

In mobile communication system, mobile communication terminals called 'mobile stations' are scattered in cell form all over the country, and wirelessly communicate with base stations connected by mutual or other public telephone network or public data network and wired dedicated communication network. It refers to a system that sends and receives. In this mobile communication system, test equipment for measuring voice call quality or data communication service quality while moving is proposed and actively used for the design of service coverage, optimization and maintenance of wireless network. To this end, a number of mobile stations are connected to the test equipment by means of a voice cable for measuring voice call quality and a data cable for measuring data communication service quality, for example, a USB cable. Each mobile station operates by using its own battery as a power source.

On the other hand, the quality of the voice call or data communication service through the test equipment is usually made over a long time, and thus the mobile station sometimes malfunctions. In this case, the power supply to the mobile station is cut off. The mobile station must be initialized later by supplying it again.

However, conventionally, since each mobile station uses its own battery as a power source, in order to initialize the mobile station, if the tester directly turns off the power by turning on the power button of the mobile station, or if the abnormal operation still does not resolve, It was a hassle to manually turn on the power button while disconnecting it from the mobile station and then reconnecting it.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the mobile station can automatically control the power of the mobile station used for the test at a remote location by hardware or software to minimize the inconvenience caused by manual operation. It is an object to provide a power interface device for test equipment.

The power interface device for mobile station test equipment of the present invention for achieving the above object controls the voice call or data communication between the mobile station and the other party's wired / wireless communication terminal through the power, voice and data communication interface to the mobile station, and as a result It is provided in the phone control module provided with a switching means is provided in the input / output terminal of the mobile station is interposed between the power supply terminal pin for supplying external power to the mobile station and the external power source; Drive means for driving the switching means; A three-state buffer provided at an input / output terminal of the mobile station for controlling an initialization terminal pin to three states by software-on and initializing the mobile station in a state in which the switching means is closed, and controlling the driving means and the three-state buffer. Control means to achieve.

In the above-described configuration, the switching means may be made by including a relay switch. Further, the tri-state buffer is preferably maintained in a floating state after operating the active high or active low.

Hereinafter, with reference to the accompanying drawings will be described in detail a power interface device for a mobile station test equipment according to a preferred embodiment of the present invention.

1 is a schematic configuration diagram of a mobile station test equipment to which the power interface device of the present invention may be applied. As shown in FIG. 1, the configuration of the mobile station test equipment to which the power interface device of the present invention can be applied includes a plurality of mobile stations, for example, seven mobile stations 10-1, 10-2, 10-3, and 10-4. 10-n; hereafter collectively referred to by the reference number '10') voice calls between the mobile station 10 and the other wired / wireless communication terminal (not shown) through the power, voice and data communication interface for each Or seven phone control modules for controlling data communication and receiving the result (30-1, 30-2, 30-3, 30-4, 30-n; For example, a dual port RAM (DPRAM) 40, which is a memory for temporarily storing various data necessary for the processing of each phone control module 30, each phone control module 30 Integrated control module 50, the integrated control module that receives the test results from the integrated control and the phone control module 30 Each phone control module 30 is managed via 50 and the test results received through the integrated control module 50 by the built-in analysis program are processed to indicate various kinds of voice call quality or data communication service quality. The GPS module for providing the GPS reception time information for the time synchronization between the host PC 70, each of the phone control module 30 and the integrated control module 50, which displays it to the operator after calculating the 20 and the Ethernet control device 80 to provide a LAN environment between the phone control module 30 and the integrated control module 50 and the host PC (70).

In the above-described configuration, each phone control module 30 is provided with a microprocessor so that the call processing between the mobile station 10 and the other party's wired / wireless communication terminal in its own jurisdiction in accordance with a command from the integrated control module 50 is performed. A voice file may be transmitted / received or data communicated. For this purpose, a power cable, a voice cable, a data communication cable, etc., which interface with the mobile station 10 are provided. Of course, in the case of a mobile station that adopts a 24-pin input / output standard connection terminal (hereinafter simply referred to as a “standard connection terminal”) established by the Korea Telecommunications Technology Association (TTA) or at least a corresponding terminal, the above-mentioned various cables Alternatively, the interface with the mobile station 10 may be established by using only a standard connector cable or using only an audio cable and a standard connector cable.

Figure 2 is a diagram showing the function of each pin in the input / output standard connection terminal. As shown in FIG. 2, the standard connection terminal is composed of a total of 24 pins, and the 4th and 5th terminal pins (POWER) (hereinafter referred to as 'power supply terminal pins') are the charging circuit external and internal mobile stations, respectively. Assigned for power supply to (10), terminal pins 7 and 11 are assigned for AUDIO IN and AUDIO OUT, respectively, 3, 13, 14, 17 and 18 Terminal pin is assigned for various data communication, and terminal pin 6 (ON SWITCH) (hereinafter referred to as 'initializing terminal pin') is used to initialize the mobile station 10 by software in the power standby state (battery In a state in which power is supplied to each component of the mobile station by pressing the power button in the mounted state.

Returning to FIG. 1 again, the Ethernet device 80 may include an Ethernet card installed in each of the phone control module 30, the integrated control module 50, and the host PC 70, respectively. In FIG. 1, reference numeral 60 denotes a flash disk that can be used as an auxiliary storage medium, and 22, 42, and 82 denote GPS lines, DPRAM bus lines, and Ethernet lines, respectively, and the same communication line uses the same hatching line. It is shown.

3 is a block diagram of a power interface device of the present invention. As shown in FIG. 3, the power interface device of the present invention may be implemented in each phone control module 30. Specifically, the microprocessor 32 which controls the overall operation of the phone control module 30, A relay switch 36 having a switch contact interposed between power lines for supplying power to a power supply terminal pin, a relay driver 34 for turning on or off the relay switch 36 under the control of the microprocessor 32; It may include a three-state buffer 38 for controlling the state of the initialization terminal pin (ON SWITCH) in the power standby state of the mobile station 10 by the software ON to initialize the state (ON SWITCH) to three states.

In the above configuration, the three-state buffer 38 is installed in consideration of the different state of the control signal input through the initialization terminal pin (ON SWITCH) for each manufacturer of the mobile station, for example, a mobile station manufactured by Samsung Electronics In the case of (hereinafter referred to as 'A type terminal'), the initializing terminal pin (ON SWITCH) to make the active high (Active High) state to initialize the mobile station, the other station manufactured by the other manufacturers in reverse control Initialization is performed when a signal is supplied, and since the initialization terminal pin (ON SWITCH) has to be made in a floating state (High Impedence state) after the mobile station 10 is initialized in this manner.

3 is a flowchart for describing an operation of the power interface device shown in FIG. 2, and unless otherwise described, the microprocessor 32 of each phone control module 30 performs as a subject. As shown in FIG. 3, first in step S10, it is determined whether a wave-on command is received, which is generated by the host PC 70 via the integrated control module 50. As a result of the determination in step S10, if a power-on command is received, the flow proceeds to step S12 to control the relay driver 34 to close the switch contact of the relay switch 36 to close the mobile station through the power supply terminal pin POWER. The power is supplied to the hardware 10 so that the power standby state.

On the other hand, in the case of the mobile station 10, even if it is in the power standby state by hardware, power is supplied to each part of the mobile station 10 only when the power button is turned on. Determination of whether or not, information about this can be provided by the host PC 70 via the integrated control module (50). As a result of the determination in step S14, if the mobile station is an A-type terminal, the tri-state buffer 38 is controlled in step S16 to keep the initial terminal pin (ON SWITCH) in an active high state for a predetermined time and then again. After maintaining the floating state in S18, the voice call quality or data communication service quality test is performed.

On the other hand, when the determination result in step S14 indicates that the mobile station is not an A-type terminal, the tri-state buffer 38 is controlled in step S26 to maintain the initial terminal pin ON switch for an active low state for a predetermined time. The voice call quality or data communication service quality test is performed after maintaining the floating state in step S22. On the other hand, when an abnormal operation of the mobile station 10 occurs during the test by performing the above-described process, the host PC 70 issues a power-off command to the mobile station 10 via the integrated control module 50. The mobile station 10 checks this in step S10 and then controls the relay driver 34 in step S24 to open the switch contact of the relay switch 36 to cut off the power supply to the power supply terminal pin (POWER). do.

The power interface device for mobile station test equipment of the present invention is not limited to the above-described embodiment, and can be implemented in various modifications within the scope of the technical idea of the present invention. For example, in case of input / output connection terminals that are not designed and standardized by each manufacturer, use the connection terminal cable suitable for the mobile station, and implement the interface device by connecting the power supply terminal pin and the initialization terminal pin in the cable. Could be Further, the relay switch may be implemented as a solid state relay such as a transistor.

According to the power interface device for mobile station test equipment of the present invention as described above, it is possible to automatically control the power of the mobile station used for the test remotely in hardware or software, thereby minimizing the inconvenience of manual operation. I can do it.

Claims (3)

Is provided in the phone control module that controls the voice call or data communication between the mobile station and the other party wired / wireless communication terminal through the power, voice and data communication interface to the mobile station and receives the result, Switching means provided at an input / output terminal of the mobile station and interposed between a power supply terminal pin for supplying external power to the mobile station and the external power source; Drive means for driving the switching means; A three-state buffer provided at an input / output terminal of the mobile station for controlling the initialization terminal pin to three states by software-on and initializing the mobile station in a state where the switching means is closed; And a control means for controlling said drive means and said three-state buffer. The method of claim 1, And the switching means comprises a relay switch. The method according to claim 1 or 2, And the tri-state buffer maintains a floating state after operating in an active high or active low state.

Images