WO2007069676A1

WO2007069676A1 - Controller, computer program and control method

Info

Publication number: WO2007069676A1
Application number: PCT/JP2006/324910
Authority: WO
Inventors: Yutaka Imai
Original assignee: Pioneer Corporation
Priority date: 2005-12-14
Filing date: 2006-12-14
Publication date: 2007-06-21
Also published as: JP2009053729A

Abstract

A controller capable of lessening the burden of work or the like in setting an operating state when the operation of an object included in a communication system is recognized or the like. A computer program and a control method are also provided. The control section (31) of a terminal (3) controls to have a control tool (2) transmit command information for setting the operating state of a CD player (1) after the ending operation by a test of (1) to a predetermined base state of (1) before setting it to a test state for performing the next test operation.

Description

Specification

Control device, computer program, and control method

Technical field

[0001] The present application relates to a technical field of a control device, a computer program, and a control method for controlling transmission of information by an object in a communication system that performs communication between a plurality of objects.

Background art

Conventionally, a so-called master / slave communication method has been widely adopted as a method for transmitting information between a plurality of devices, application programs, modules within a program, and the like.

[0003] In this method, a device, program, module, or the like called a master (hereinafter referred to as an object as a concept including these) sends command information that defines the slave operation content to an object called a slave. The slave that receives the command information executes an operation according to the command information, and in some cases, responds to the master with the operation result as information. In particular, it controls the operation of the slave from the master side. It is used for this purpose.

For example, in Patent Document 1, an analog signal including master device command information is transmitted to a slave device, and the command information is decoded by the slave device. Accordingly, an inter-device control system for decoding analog signals and the like will be disclosed.

[0005] By the way, the communication control in the master-slave method is realized mainly by software, and a test to confirm the normality of the operation contents of the slave is indispensable so that troubles caused by software or the like do not occur. Conventionally, this test has been carried out in the following manner, for example.

[0006] First, the master force also sends command information to the slave, and changes the slave's operating state (eg, sleep state, execution state, standby state, etc.) to a state where a desired test can be performed (hereinafter referred to as a test state). Set (change the operating status). And confirm the operation of the slave Command information for testing is sent to the slave, and the response information as a result of the slave's operation is obtained by the command information. The tester confirms whether or not the response information conforms to the required specifications, and one test is completed. Then, in the same way, set the slave operating state to a state where the next test can be performed, and continue the test.

Patent Document 1: JP 2001-69471 A

Disclosure of the invention

Problems to be solved by the invention

[0007] In general, since a slave has a plurality of operation states, in order to ensure the normality of the operation content of the slave, all command information for all the operation states is possible. It is highly desirable to test in combination.

However, in the conventional method described above, there is a problem that the work load for setting the operation state of the slave to a desired test state becomes excessive. In other words, if the slave has various operation states, the slave operation state after the test (hereinafter referred to as the result state) also changes to various states depending on the test state and the content of the test command information. . Therefore, the tester must consider the command information for setting the operation state of the slave to a desired test state, combinations thereof, and the like according to various result states. This led to the creation of test data and prolonged setup work during the test.

[0009] The present application has been made in view of the above points, and an example of the problem is that, for example, when checking the operation of an object included in the communication system, the burden of setting the operation state of the operation state, etc. It is an object of the present invention to provide a control device, a computer program, and a control method that can be reduced.

Means for solving the problem

[0010] In order to solve the above-mentioned problem, in the invention according to claim 1, the first object transmits to the second object command information defining the operation of the second object, and the command information In the communication system that changes the operation state to a different state in accordance with the command information, the second object that receives the command is a control device that controls transmission of the command information by the first object, After the operation of 1 is finished Control means for controlling the instruction information to be changed to the predetermined one state by the first object before changing the movement state of the second object to a state for performing the next action. It is characterized by providing.

[0011] The invention of claim 3 is directed to the second object in which the first object transmits command information defining the operation of the second object to the second object and receives the command information. In the communication system that changes the operation state to a different state according to the command information, the computer included in the control device that controls transmission of the command information by the first object is set to Before changing the operation state of the second object after completion of the operation to a state for performing the next operation, causing the first object to transmit the command information for changing to the predetermined one state It is characterized by functioning as a control means for controlling as described above.

[0012] In the invention according to claim 4, the first object transmits the command information defining the operation of the second object to the second object, and receives the command information. Is a control method in a control device that controls transmission of the command information by the first object in a communication system that changes its operation state to a different state according to the command information, Before changing the operation state of the second object after the operation to the state for performing the next operation, the command information for changing to the predetermined state 1 is transmitted by the first object. It is characterized by including the process of controlling to make it carry out.

Brief Description of Drawings

FIG. 1 is a diagram showing an example of a schematic configuration of a test system S according to the present embodiment.

FIG. 2 is a diagram showing an example of command information for CD player 1 and changes in the operating state of CD player 1 due to the command.

[FIG. 3] (a) is a diagram showing an example of ground state setting command information according to the present embodiment, and (b) is an example of test state setting command information according to the present embodiment. FIG.

FIG. 4 is a flowchart showing an example of processing by the control unit 31 of the terminal device 3 according to the present embodiment. FIG. 5 is a diagram showing an example of log data in which command information transmitted from the terminal device 3 and response information transmitted from the CD player 1 with respect to the information are recorded.

Explanation of symbols

[0014] 1 CD player

2 Control jig

3 Terminal equipment

21 Control unit

22 I / O section

23 Display

24 Operation unit

25 System bus

31 Control unit

32 Memory unit

33 I / O section

34 Display

35 Operation unit

36 System bus

S test system

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the best embodiment of the present application will be described in detail with reference to the drawings. The embodiment described below is an embodiment in which the present application is applied to a test system for testing the operation content of a CD (Compact Disk) player included in the system in an audio equipment control system. It is.

[0016] [1. Overview of test system configuration and functions]

First, the configuration and function of the test system S according to the present embodiment will be described with reference to FIG.

[0018] As shown in FIG. 1, the test system S includes a CD player 1 as a second object, A control jig 2 as a first object and a terminal device 3 as a control device are configured. The CD player 1 and the control jig 2 are connected by, for example, a cable such as IEEE 1394 (the Institute of Electrical and Electronic Engineer 1394), and data can be transmitted and received between them. The control jig 2 and the terminal device 3 are connected by a cable such as USB (Universal Serial Bus) ゝ RS-232C (Recommended Standard 232 C), for example, so that data can be transmitted and received between them. ing.

The audio device control system according to the present embodiment employs a master / slave system. In other words, the command information that defines the operation of the CD player 1 is transmitted by the control jig 2 (master), and the CD player 1 (slave) force that received the command information executes the operation according to the information, and the operation status is also changed. It is changed to a different state, and the operation result is transmitted to the control jig 2 as response information (for example, including the operation state of the CD player 1, the playback track number, the playback position, etc.).

In the test system S according to the present embodiment, the terminal device 3 transmits test command information to the control jig 2, and the control jig 2 further transmits the command information to the CD player 1. Then, the CD player 1 performs an operation in accordance with the contents of the received command information, and sends response information to the control jig 2. The control jig 2 transmits the received response information to the terminal device 3. The terminal device 3 stores the received response information.

[0021] [2. Configuration and function of CD player]

Next, the configuration and functions of the CD player 1 will be described with reference to FIG.

[0022] The CD player 1 has a tray unit for detachably storing the CD, a spindle motor for rotating the stored CD, irradiating the CD with a light beam, receiving the reflected light, and outputting a light reception signal. Pickup unit for driving, a drive circuit for supplying a drive signal for outputting a light beam to the pickup unit, a reproduction unit for outputting a reproduction RF signal based on the received light signal supplied by the pickup force, a CPU (Central Processing Unit), a ROM The control unit includes a (Read Only Memory), a RAM (Random Access Memory), and the like.

[0023] The control unit reads and executes a control program stored in the ROM or the like by the CPU, thereby controlling each unit of the CD player and interpreting command information received via the connection cable. Let each part perform actions according to the information, and respond to the results. It will be sent to the control jig 2 as answer information.

[0024] FIG. 2 is a diagram showing an example of command information for the CD player 1 and an example of changes in the operating state of the CD player 1 due to the command. When the operating status is shown in the left column, it shows the operating status after executing the command shown in the top row. The numbers in the left column are state numbers that indicate the operating state.

[0025] As shown in FIG. 2, the operating state of the CD player 1 includes a stop state in which the CD is not played, a playback state in which audio information recorded on the CD is played back, and a recording on the CD. Double-speed playback state where audio information is played back in fast forward, reverse double-speed playback state where fast-forward playback is performed in the reverse direction, pause state where playback is paused at a position of the track being played back, open state where the tray section is ejected Etc. exist. Also, commands for CD player 1 include stop, play, fast forward, rewind, and eject.

[0026] An example of the change in the operation state when the CD player 1 is in the stop state will be described. When the stop command is received, the operation remains unchanged in the stop state, and when the playback command is received, the playback is performed. When the operation starts and changes to the playback state and a fast-forward command is received, the playback position is advanced to the next track and stopped, and when a rewind command is received, the playback position is moved to the previous track. When the advance command is stopped and an edit command is received, the tray is discharged to change to the open state.

[0027] Also, an example when the CD player 1 is in a playback state will be described. When a stop command is received, the playback operation is stopped and changed to a stop state, and when a playback command is received, When the playback operation is paused and changed to the pause state, when a fast-forward command is received, the playback mode changes to double-speed playback.When a rewind command is received, the playback mode changes to reverse double-speed playback mode. If the command is received, the playback state remains unchanged.

As described above, the CD player 1 changes its operation state to a different state according to the received command information and the current operation state.

[0029] [3. Configuration and function of control jig]

Next, the configuration and function of the control jig 2 will be described with reference to FIG.

[0030] The control jig 2 is a device for confirming the operation contents and the like of various devices. Instead of the control jig 2, a dedicated control controller is incorporated in the audio equipment control system.

[0031] As shown in FIG. 1, the control jig 2 controls the input / output of data between the control unit 21 that also includes CPU, RAM, ROM and the like, the CD player 1, the terminal device 3, and the control unit 21. Input / output unit 22 (for example, I / O controller, etc.), display unit 23 (for example, liquid crystal panel, etc.) for displaying information such as characters, and tester-powered operation instructions are received and the contents of the instructions are controlled An operation unit 24 (for example, a button, a switch, etc.) that outputs to the unit 21 is provided, and the control unit 21 and each unit are connected by a system bus 25.

The control unit 21 performs overall control of each unit of the control jig 2 by the CPU reading and executing a control program stored in a ROM or the like. For example, the control unit 21 receives command information transmitted from the terminal device 3 under the control of the input / output unit 22, converts the command information into a format that can be interpreted by the CD player 1, and then converts the command information to the input / output unit 22. Is sent to CD player 1 under the control of. Further, when command information is input by the tester operating the operation unit 24, the control unit 21 stores the command information in the RAM, and the command information stored in the RAM according to the operation by the tester 1 To send to. Furthermore, the control unit 21 receives the response information transmitted from the CD player 1, transmits the response information to the terminal device 3, and also transmits a part of the response information (for example, the operating state of the CD player 1). Is displayed on the display unit 23.

[0033] [4. Configuration and Function of Terminal Device]

Next, the configuration and function of the terminal device 3 will be described using FIG. 1 and FIG.

[0034] The terminal device 3 is a device that controls transmission of command information by the control jig 2. For example, a personal computer, a PDA (Personal Digital Assistant), or the like is applicable.

As shown in FIG. 1, the terminal device 3 includes a control unit 31 as an example of a control unit, a storage unit 32 (for example, a hard disk, a flash memory, etc.) that stores various programs, data, and the like. An input / output unit 33 (for example, an IZO controller) for controlling input / output of data between the jig 2 and the control unit 31 and a display unit 34 for displaying information such as characters and images (for example, a liquid crystal display, a plasma display) Etc.) and accepting operation instructions from the examiner, And an operation unit 35 (for example, a keyboard, a mouse, a touch panel, etc.) for outputting the displayed content to the control unit 31, and the control unit 31 and each unit are connected by a system bus 36.

[0036] The storage unit 32 includes test data, comparison response data, ground state setting data, and test state setting data as data for testing the operation content of the CD player 1, for example, in the form of a text file. Memorized.

[0037] The test data is data in which test command information for confirming the operation content of the CD player 1, test status, file name of comparison response data to be used, and the like are described by the tester. Created corresponding to predetermined test items.

[0038] The comparison response data is data in which response information to be returned by the CD player 1 with respect to the test command information is described. For example, the required specification and interface specifications of the CD player 1 are described. It is created in advance by a tester based on a document or the like. This comparison response data is compared with the response information sent from the CD player 1 via the control jig 2 in the actual test, and the normality of the operation content is confirmed based on the difference between the two. Now that you can!

[0039] Further, the ground state setting data is predetermined before setting the operation state (that is, the result state) of the CD player 1 after one test is completed to the test state for performing the next test. This is the data that describes the command information for setting the 1 state (hereinafter referred to as the ground state).

[0040] The test state setting data is data in which command information for setting the operation state of the CD player 1 to the test state corresponding to the test item is described.

FIG. 3 (a) is a diagram showing an example of ground state setting command information according to the present embodiment, and FIG. 3 (b) is an example of test state setting command information according to the present embodiment. It is a figure which shows an example.

In the present embodiment, the stopped state is the ground state. Then, as shown in FIG. 3 (a), the operation state of the CD player 1 can be set to the base state with the same command combination regardless of the operation state. That is, by transmitting command information in the order of a play command, an eject command, and a stop command, the operating state of the CD player 1 changes to a stopped state. [0043] It is possible to set the command information for setting the ground state to a different command (or command combination) according to each result state. In this way, the ground state can be set by combining one command. In this way, it is easy and reliable to set the ground state without having to manage a plurality of ground state setting data.

[0044] It should be noted that which operating state is set as the ground state should be determined according to each system. For example, test contents, ease of setting to the test state, stability of the operating state, etc. Determine in consideration of

[0045] If the stop state is defined as a ground state, command information for setting each ground state from the ground state is as shown in FIG. 3 (b). For example, to set the stop state, send a stop command (or do not send a command). Also, to set the playback state, send a playback command. To set the double-speed playback state, send command information in the order of playback command and fast-forward command.

[0046] Thus, it is sufficient to prepare at most the command information to be changed to the test state for the number of test states.

[0047] The storage unit 32 also stores a test control program in addition to a predetermined operating system and various application programs. The test control program is a program for continuously and automatically executing the test of the operation contents of the CD player 1 in the audio equipment control system.

[0048] The control unit 31 includes a CPU, a ROM, a RAM, and the like, and the CPU reads and executes various programs stored in the storage unit 32 or the ROM, so that each unit of the terminal device 3 is comprehensively controlled. At the same time, the test control program is executed to function as the control means according to the present embodiment. The processing contents of the control unit 31 will be described later.

[0049] Various programs such as a test control program may be downloaded, for example, by a predetermined server or the like via a network, or may be recorded on a recording medium such as a CD-ROM and via a drive. You can make it read.

[0050] [5. Operation of test system]

Next, the operation of the test system S will be described using FIG. 4 and FIG. FIG. 4 is a flowchart showing an example of processing by the control unit 31 of the terminal device 3 according to the present embodiment.

When the tester operates the operation unit 35 of the terminal device 3, the control unit 31 of the terminal device 3 executes the test control program stored in the storage unit 32. Then, according to the menu displayed on the display unit 34, etc., the tester operates the operation unit 35 to designate one or a plurality of test data and select the test start button. The process shown in Fig. 4 is started.

First, the control unit 31 reads the test data corresponding to the first test item from the test data designated by the tester from the storage unit 32 (step S101).

Next, the control unit 31 reads the ground state setting data from the storage unit 32 and transmits the ground state setting command information described in the data to the control jig 2. Specifically, as shown in FIG. 3 (a), command information is transmitted in the order of a playback command, an immediate command, and a stop command (step S102). Then, the control unit 31 shifts to waiting for reception of response information from the control jig 2 (step S103). Each time the control unit 31 transmits command information and receives response information, the control unit 31 stores the information in the storage unit 32 as log data.

The control jig 2 that has received the command information for setting the ground state further transmits the command information to the CD player 1. In this way, the control unit 31 of the terminal device 3 functions as a control unit that controls transmission of command information for testing by the control jig 2.

[0056] The CD player 1 that has received the command information for setting the ground state executes an operation according to the command information, and finally the operation state is changed to a stop state. Then, the operation result for each command is sent to the control jig 2 as response information. The control jig 2 that has received the response information further transmits the information to the terminal device 3.

[0057] When the control unit 31 of the terminal device 3 receives the response information from the control jig 2 (step S 10 3: YES), the test state setting for setting the test state described in the test data is performed. Data is read, command information for setting the test state described in the data is sent to the control jig 2 (step S104), and the system waits for response information from the control jig 2 (step S105). . [0058] In the same manner as described above, when the CD player 1 receives command information for setting the test state, the operation state of the CD player 1 changes to a state corresponding to the test content. Then, the response information transmitted from the CD player 1 is received by the control unit 31 of the terminal device 3 in the same manner as described above (step S 105: YES).

[0059] Then, the control unit 31 transmits the test command information described in the test data to the control jig 2 (step S106), and shifts to waiting for response information from the control jig 2 ( Step S 107).

[0060] In the same manner as described above, when test command information is received by the CD player 1, the CD player 1 performs an operation according to the command information, and the operation state is a certain state (result state). To change. Then, the response information transmitted from the CD player 1 is received by the control unit 31 of the terminal device 3 in the same manner as described above (step S107: YES).

[0061] Then, the control unit 31 reads the comparison response data specified by the file name of the comparison response data described in the test data, and performs a comparison process with the received response information (step S108). ). As a result, when there is no difference between the two, the control unit 31 stores information indicating normality in the storage unit 32, and when there is a difference, the control unit 31 stores information indicating abnormality in the storage unit 32 together with information indicating the contents of the difference. Save (step S109).

Next, the control unit 31 determines whether or not the next test data exists (step 110). If the next test data exists (step S110: YES), the next test data is read (step S 101). ), And transmits command information for ground state setting (step S102).

[0063] As a result, whatever the result state of the CD player 1 is, the operation state changes to a stop state which is a ground state. Then, the control unit 31 of the terminal device 3 transmits 1 command information corresponding to the test state described in the test data (step S104), so that the operation state of the CD player 1 is also reduced to the stop state force. Change to the desired test state.

[0064] In this way, tests are performed one after another, and when there is no test data to be read next (step S110: NO), the control unit 31 of the terminal device 3 ends the processing.

Next, an example of a test result acquired by the above operation of the test system S will be described.

FIG. 5 shows command information transmitted from the terminal device 3 and a CD player corresponding to the information. 3 is a diagram illustrating an example of log data in which response information transmitted from 1 is recorded. FIG.

In the figure, the line beginning with “#” is a comment line, the line “>” is a line indicating command information, and the line “<” is a line indicating response information. In command information and response information, numerical data is expressed in hexadecimal for each byte. In the response information, data other than the data indicating the operating status of CD player 1 is indicated by “XX”.

[0068] In the log data 101 indicating the first test result, the command is executed in the order of the playback command (04), the immediate command (F169), and the stop command (02) in order to set the operation state to the ground state. Send information. As a result, as shown in the response information, the operating state of CD player 1 finally shifts to the stopped state (01: the third byte of the response information). Thereafter, in order to set the operation state of the CD player 1 to the playback state as the test state, when the playback command (0 4) is transmitted, the operation state of the CD player 1 shifts to the playback state (02). When a fast-forward command (A401) is transmitted as a test command, the operating state of the CD player 1 shifts to the double-speed playback state (03).

[0069] In the log data 102 indicating the next test result, if command information (04, F169, 02) is transmitted in the same order as described above, a transition is made to the stop state (01), and then the stop command (02) When is transmitted, the stopped state as the test state is maintained (01). Then, when the immediate command (F169) is transmitted as a test command, the state shifts to the open state (06).

[0070] In the log data 103 indicating the next test result, in the same manner as described above, when the transition is made to the stop state as the base state, and then a playback command is transmitted twice, the pause state (the test state) ( When the process moves to 05) and the rewind command (A402) is transmitted as the test command information, the process shifts to the reverse double speed playback state (04).

[0071] As described above, according to the present embodiment, the control unit 31 of the terminal device 3 indicates the operation state of the CD player 1 after the operation according to the test 1 is completed, and the operation of the next test. Before setting the test state to be performed, control is performed so that the command information to be set to the predetermined ground state is sent to the control jig 2, so prepare command information corresponding to each test state one by one. With just that, you can make settings for performing all test operations. Therefore, it is possible to reduce the burden of setting the operation state of the CD player 1.

[0072] In addition, which state is the result state of CD player 1 after the operation of test 1 is completed Even so, by sending the same command information to the control jig 2, it is possible to set the operating state of the CD player 1 to the ground state. By preparing one command information for test state setting corresponding to the test state one by one, settings for performing all test operations can be performed. Therefore, it is possible to further reduce the burden of setting work.

[0073] Furthermore, even when the CD player 1 performs an unexpected operation on the command information and shifts to an unexpected test state, the operation state of the CD player 1 is surely set to the base state. As a result, multiple tests can be performed in succession without manual setting work.

[0074] Furthermore, the normality of the operation content is determined by storing comparison response data in the storage unit 32 of the terminal device 3 and comparing it with the response information transmitted from the control unit 31 CD player 1. Can reduce the burden of confirming the test results.

In the embodiment described above, the power applied to the audio device control system of the communication system is not limited to this.

[0076] For example, the present invention is not limited to a system in which devices in the same apparatus are controlled by a microcomputer or the like, but may be applied to a peer-to-peer communication system or a client server system between apparatuses via a wired or wireless network. It can also be applied to inter-process communication between computer programs in the same device, and data exchange between modules in the same program.

[0077] Further, the communication system does not necessarily have to be a system that adopts the master / slave method. For example, an object receives command information transmitted from another object, and responds to the command information. It may be applied to a system that changes its operating state to a different state.

In the above embodiment, the control device is applied to the terminal device included in the test system. However, the present invention is not limited to this. For example, communication is performed between a plurality of devices. In a communication system, by controlling the transmission of command information by a certain device, a control device that indirectly controls the operating state of other devices that receive the command information. It may be applied.

In addition, please refer to the entire disclosure of the Japanese patent application (No. 2005-360037) including the specification, claims, drawings and abstract filed on December 14, 2005. Incorporated here.

Claims

The scope of the claims

[1] The first object transmits command information defining the operation of the second object to the second object, and the second object that receives the command information responds to the command information. In a communication system for changing the operation state to a different state, the control device controls transmission of the command information by the first object,

Before changing the operation state of the second object after the operation of 1 to the state for performing the next operation, the command information for changing to the predetermined 1 state is sent to the first object. A control device comprising control means for controlling to transmit by the control unit.

[2] In the control device according to claim 1,

The control means causes the second object to transmit the same instruction information in any state in any state S of the second object after the movement of the first is completed, so that the second object A control device that changes an operation state of an object to the predetermined one state.

[3] The first object sends command information that defines the behavior of the second object to the second object, and the second object that receives the command information responds to the command information. In a communication system that changes the operation state to a different state, a computer included in a control device that controls transmission of the command information by the first object is provided.

Before changing the operation state of the second object after the operation of 1 to the state for performing the next operation, the command information for changing to the predetermined 1 state is sent to the first object. A computer program characterized in that it functions as a control means for controlling to transmit the data.

[4] The first object transmits command information that defines the action of the second object to the second object, and the second object that receives the command information responds to the command information. In a communication system that changes the operation state to a different state, a control method in a control device that controls transmission of the command information by the first object, Before changing the operation state of the second object after the operation of 1 to the state for performing the next operation, the command information for changing to the predetermined 1 state is sent to the first object. A control method characterized by comprising a step of controlling to transmit by means of.