JP2003156995A - Remote education system for experiment and practice of digital circuit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote education system enabling distribution of educational contents and information sharing between a student and a teacher so as to realize the remote education system for experiment and practice of a digital circuit. SOLUTION: The remote education system with a student system 3 and a teacher system 2 connected by a transmission line is so constituted that educational contents prepared to the student system is provided with an FPGA and an educational contents distribution device 22 provided in the teacher system 2 sends a signal to the transmission line so as to reconstruct the FPGA to modify the educational contents. The remote education system 1 with a student system 3 and a teacher system 2 connected by a transmission line is so constituted that a JTAG circuit is packaged in the educational contents provided in the FPGA equipped on the student system and in a signal measuring device 31, and a JTAG debugging device provided in the teacher system sends a JTAG signal to the transmitting line to monitor the state of the student.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distance education system for conducting experiments, practical training, etc. to students who are away from the teacher.

[0002] Distance education is often used because it is possible to educate a plurality of students regardless of place and time. Many distance education systems are one-sided lecture types, and there are few that handle experiments and practical training because the intent of the teacher or the state of the students is difficult to convey in distance education. It is hoped that this disadvantage will be suppressed as much as possible so that the remote education system can be fully utilized for experiments and practical training.

[0003]

2. Description of the Related Art A conventional distance education system is composed of a lecturer system and a lecture system connected by a transmission line. At this time, general distance learning is conducted in a one-sided lecture format from the teacher system to the lecture system.

The circuit is not actually provided by the instructor system, but the hardware is simulated by software and the experiment is performed on the simulator.

Experiments and practical training cannot generally be conducted in a one-sided lecture format.

[0006]

However, it is important for the students to experience the experiment by measuring the signal of the circuit by using a measuring instrument or the like in the digital circuit experiment and practice, but actually experience the practice on the simulator. The inability to do is a problem.

However, in order to build a digital circuit remote education system that can actually experience experiments and practical training, it is necessary to provide a digital circuit for distributing educational contents. However, there is a problem that digital circuits cannot be distributed from a transmission line like software.

Further, in order to carry out experiments and practical training, it is necessary to smoothly exchange information between the instructor and the student, but there is a problem in that the student's state cannot be known by means of documents or images. This is a major obstacle in the practice and experiment of digital circuits that include a lot of information other than texts and images.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a digital circuit experiment / practice distance learning system that can be actually experienced, and to make it possible to monitor the state of a student.

[0010]

According to another aspect of the present invention, there is provided a distance learning system including at least one instructor system having an educational content distribution device, and at least one lecture system connected to the instructor system by a transmission line. Circuit system for delivering educational contents through a transmission line, and an FPG of a system for learning from the educational contents distribution device, which is a digital circuit experiment / practice distance learning system.
A is reconfigured to deliver educational content.

A distance learning system according to a second aspect of the present invention has at least one instructor system equipped with a debug device, and at least one lecture system connected to the instructor system by a transmission line. This learning system is equipped with a signal measuring device having a JTAG circuit and educational contents having a JTAG circuit, and is configured to debug the learning system from a transmission line. A system, wherein the debug device is configured to transmit and debug a JTAG signal to the attendance system.

[0012]

FIG. 1 is a block diagram of a digital circuit experiment / practice distance learning system 1 according to the present invention.

In FIG. 1, a digital circuit experiment / practice distance learning system 1 comprises a teacher system 2 and a plurality of lecture systems 3 which are mutually connected by a transmission line 4.
The system for teachers is a debug device 21, an educational content distribution device 22, a database 23, an interface 10.
And so on. The system for attendance comprises a signal measuring device 31, an educational content 32, an interface 33 and the like.

The database 23 of the teacher system stores the data of the circuit provided to the lecture system, and the data is transmitted to the educational content providing device 22 through the signal line S3.

The debug device 21 has an interface 24.
And a debug signal S1 is transmitted to the signal line S1.
The debug signal S1 is a JTAG signal.

The educational content distribution device 22 uses the distribution signal S.
2 is transmitted. The distribution signal S2 includes the FPGA reconfiguration protocol and the circuit information transmitted from S3.

The interface 24 is a debug device 21.
The debug signal S1 from the device or the distribution signal S2 from the educational content distribution device 22 is input, and these signals are sent to the transmission path 4. The transmission line 7 is a public line or a dedicated line such as a coaxial cable or an optical fiber cable. The signal S4 is the debug signal S1 or the distribution signal S2.
And so on.

The signal measuring device 31 is a device having a JTAG circuit and capable of measuring an electric signal. JTAG the star signal
By controlling from the signal line, various circuit debug tests are possible.

The basic concept of the JTAG test for remote education will be described with reference to FIG.

When the connection information between the BSRI B1 and the BSRII B2 is obtained, first, the value of B5 is set to 1 and the others are set to 0 under the control of JTAG.

Next, the signal on the signal line connected to the BSR is taken into the BSR by the JTAG control.

Then, the BSR values of B3 and B4 are 1, and the others are 0.

That is, B3 is connected to B3,
It turns out that it is B4.

By using this test, the learner's connection information, the probe position by the JTAG test with the BSR of the measuring instrument, and the state of the digital circuit signal were acquired from a remote location, and the learner made an incorrect connection. It will be possible to give appropriate guidance when necessary.

In the practice board 10 including the signal measuring device 31 and the educational content 32 of the system 3 for learning, the BSR is arranged at the output pin of the FPGA 11 and the probe portion of the signal measuring device 31 which is an embodiment of the educational content 32, and the above is performed. If the JTAG test is performed, the connection information of the probe used by the learner can be acquired. With this information,
When the learner connects the probe to a place different from the expected position, it becomes possible to give an appropriate instruction.

These operations are repeated until the student constructs a correct circuit, and if the circuit is assembled, the procedure proceeds to the next unit.

[0037]

According to the first aspect of the invention, the digital circuit can be distributed by reconfiguring the FPGA from the transmission line. This makes it possible to supply contents in digital circuit experiments and practical distance learning.

According to the invention of claim 2, the instructor can know the state of the circuit of the learner in detail from the transmission line,
Can provide appropriate guidance.

[Brief description of drawings]

FIG. 1 is an overall view of a digital circuit experiment / practice distance learning system.

FIG. 2 is a flowchart of experimental training.

FIG. 3 is a diagram of an example of design education of a quinary counter.

FIG. 4 is a basic conceptual diagram of a JTAG test.

Continued front page    (72) Inventor Yoshimi Sakamaki             3-13-10 Nishigaoka, Kita-ku, Tokyo Tokyo Prefecture             Tate Institute of Industrial Technology (72) Inventor Takashi Ugagami             2-15-8 Minami-Shinagawa, Shinagawa-ku, Tokyo             Dole System Support Co., Ltd. (72) Inventor Tomoyuki Kurihara             2-15-8 Minami-Shinagawa, Shinagawa-ku, Tokyo             Dole System Support Co., Ltd. F-term (reference) 2C028 AA10 AA12

Claims (2)

[Claims] 1. An educational content distribution device, and at least one teacher system, and at least one lecture system connected to the teacher system by a transmission path, wherein educational content is distributed through the transmission path. A digital circuit experiment / practice distance learning system, wherein the educational content distribution device is configured to reconfigure the FPGA of the attendance system to distribute the educational content. . 2. At least one instructor system including a debug device, and at least one lecture system connected to the instructor system by a transmission line,
This lecture system has a digital circuit experiment / practice distance learning system that is configured to debug the lecture system from the transmission line, including a signal measuring instrument with the JTAG circuit and educational content with the JTAG circuit. The debugging device is configured to transmit the JTAG signal to the lecture system and debug it so that the connection information and the circuit state of the digital circuit in the lecture system can be monitored from the lecturer system. A digital circuit experiment / practice distance education system characterized by.