JPH08320780A - Random number generating device - Google Patents

Abstract

PURPOSE: To enable random numbers generated by one random number generator to be used by many terminals at the same time and provide regular random numbers for those terminals. CONSTITUTION: To the random number generator 10, plural control units C1-Cn are connected in parallel, and those control units C1-Cn are connected to plural terminals T1-Tn as host devices one to one. At each of the control units C1-Cn, a decision part decides whether or not a random number received through a reception part is a regular random number which does not have repetition of numbers and other abnormality. A control part performs control to send only the random number decides as the regular random number by the decision part to the corresponding terminal through a transmission part and not to send a random number that is not decided as the regular random number to the terminal.

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a random number generator, and in particular,
The present invention relates to a random number generated by one random number generator, which can be used simultaneously by a large number of terminals on the host device side, and a regular random number can be provided to these terminals.

[0002]

2. Description of the Related Art Random number generators are generally equipped in ordinary computers and are widely used to supply random numbers for simulation, especially in various research fields such as mathematics and physics.

FIG. 3 is a diagram showing an example of a conventional random number generator. The random number generator includes a power supply unit 2 and a random number generator 4.
And a control unit 5, and an operation panel 6 including switches for selecting and setting operation states of the random number generator 4 and the control unit 5 and other various operators. The control unit 5 has a function of controlling all operations of the random number generator, and a transmission / reception interface function for receiving the random number generated from the random number generator 4 and sending the received random number to the terminal device T on the host device side. It has and.

[0004]

However, in the conventional random number generating device of this type, the number of terminals T on the host computer side that can be connected to the device at one time is limited to one, and a plurality of terminals T are provided. It was not possible to use (multiple use) at the same time. Therefore, the random number generator is connected to a plurality of terminals T.
A switch 8 for switching the terminal T to be connected to the device is provided for use in the device, and when the use by one terminal T is completed, the next terminal T is connected through the switch 8 The usage method by was adopted. However, such a method of use by waiting has a problem that the processing time is long and the efficiency is low.

Further, since the random number generated by the conventional random number generator is not a perfect random number but a pseudo random number including some repetition of a number, it has not completely satisfied the intended use. The present invention has been made in view of the above points, and enables a random number generated by one random number generator to be simultaneously used by a large number of terminals, and provides complete random numbers to these terminals. The present invention intends to provide a random number generating device.

[0006]

In order to achieve the above object, a random number generator according to the present invention has one random number generator, one operation panel, one power supply section, and the random number generator. A plurality of control units connected in parallel to each other and connected to a plurality of terminals in a one-to-one relationship, each control unit receiving a random number generated by the random number generator. And a transmission unit for transmitting the random number to the corresponding terminal, and whether the random number received via the reception unit is a regular random number without repetition of numbers or other abnormalities. Only a judgment unit for judging and a random number judged to be a normal random number by the judgment unit are sent to the corresponding terminal via the transmitting unit, and a random number judged not to be a normal random number is sent to the terminal. Control not to A control unit, is characterized in that a memory unit for temporarily storing the random number data.

[0007]

A plurality of control units are connected in parallel to one random number generator, and these control units are connected one-to-one to a plurality of terminals on the host device side.
In each of the control units, the determination unit determines whether or not the random number received via the reception unit is a regular random number that does not have a number repetition or other abnormality. The control unit controls only the random number determined to be a normal random number by the determination unit to be sent to the corresponding terminal via the transmission unit,
In addition, it controls so that a random number determined as not being a regular random number is not sent to the terminal. With such a configuration, random numbers generated by one random number generator can be simultaneously used by a large number of terminals, and a complete regular random number can be provided to these terminals.

According to a preferred embodiment of the present invention, the control unit of each of the plurality of control units sets the timing of transmitting a random number to the corresponding terminal via the transmission unit to the control units of the other control units. Are independently controlled, whereby different random numbers can be simultaneously supplied from the one random number generator to the plurality of terminals. Further, each of the control units further includes a test pattern generator, and by using the test pattern data generated by the test pattern generator instead of the random number, it is possible to check its own operation. There is.

[0009]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a diagram showing the overall configuration of a random number generator according to an embodiment of the present invention. The random number generator includes one random number generator 10 and a plurality of control units C.
, Cn, and one operation panel 14 including switches for selecting and setting the operation states of the random number generator 10 and the control units C1, C2, ..., Cn, and various operators. are doing. The random number generator 10 and the control units C1, C2, ...
Connected to 5. The plurality of control units C1, C
, ..., Cn have a one-to-one correspondence with the terminals T1, T2 ,.

In this embodiment, the random number generator 10
Is a full-scale random number generator having a complicated and large-scale hardware configuration so as to be able to generate regular random numbers without repetition of numbers, and generates random number data in units of 8 bits. In each 8-bit random number data,
It is a few bits that represent the random number itself, and the remaining bits are control bits.

As will be described in detail below, the random number data generated by the common random number generator 10 is transmitted to a plurality of terminals T1, T2, ... Through the plurality of control units C1, C2 ,. , Tn are supplied in parallel. Thus, in this embodiment, one random number generator 10 can be simultaneously used (multiplexed) by a plurality of terminals T1, T2, ..., Tn.

FIG. 2 shows each of the control units C1, C2,
, Cn is a diagram illustrating a specific configuration example, but since the configurations of these control units C1, C2, ..., Cn are the same as each other, only the control unit C1 is shown. The detailed configuration of the control unit C1 will be described below, but the other control units C2, ..., Cn have the same configuration.

In the control unit C1, the receiving section 1
Reference numeral 6 has a reception interface function for receiving the random numbers generated by the random number generator 10. Inspection determination unit 17
Checks the random number data received via the receiving unit 16 as follows,
The presence / absence of hardware abnormality at 0 and the presence / absence of abnormality in the random number data itself are determined. That is,

1) Determine whether or not the random number data generated by the random number generator 10 has been correctly received by the control unit C1 by checking the parity bit of the random number data. 2) By checking the data pulse width of the random number data, it is determined whether or not the random number generator 10 has generated the random number data at a predetermined timing (speed). 3) It is determined whether or not the random number generation level in the random number generator 10 is normal by checking whether or not the state in which the level of each bit representing the random number itself has not changed has continued for a certain time or longer. 4) It is determined whether the random number indicated by the random number data is a regular random number that does not have repeatability with other random numbers that have been generated so far. 5) By checking the strobe pulse width error and the strobe period error, it is determined whether or not there is a hardware abnormality in the random number generator 10.

Further, in FIG. 2, the test pattern generator 18 generates test pattern data for inspecting the operation of the control unit C1 by simulation. The selector 20 selects either the random number data generated by the random number generator 10 and inspected and determined by the inspection determination unit 17 or the test pattern data generated by the test pattern generation unit 18 in response to an instruction from the control unit 23. One of them is selected. That is, the selector 20 normally selects the random number data generated by the random number generator 10 and inspected by the inspection determination unit 17, but when the operation of the control unit C1 is inspected, the test is performed. The test pattern data generated by the pattern generator 18 is selected.

First memory 21 and second memory 22
Is for temporarily storing the random number data or the test pattern data selected by the selector 20,
When data is sent from one memory 21 or 22 to the terminal T1, the other memory 22 or 21 stores the data selected by the selector 20. As described above, by providing the first memory 21 and the second memory 22 that function complementarily, data can be sent and stored at the same time, and the data transfer time can be significantly shortened.

The selector 24 selects the data in the memory 21 or 22 which is not in the data storage operation and supplies it to the transmission unit 25. The transmission unit 25 has a transmission interface function for transmitting the data selected by the selector 24 to the corresponding terminal T1.

Further, the control unit 23 controls the first memory 2
Address control for the first and second memories 22, control of read timing of random number data from the first memory 21 or 22 to the transmitter 25, and other necessary control are performed. In particular, the control unit 23 controls the inspection determination unit 1
By the inspection of 2) and 4) described above by 7, the control is performed to prohibit the writing or reading with respect to the first memory 21 or 22 with respect to the determined random number which is not the normal random number generated at the predetermined timing.

The other control units C2, ..., Cn are also constructed as described above. An individual control unit C1,
The control units 23 for C2, ..., Cn are independent of the transmission units 2 respectively.
The transmission timing of the random number data from 5 is controlled. Therefore, in the above-described embodiment using one common random number generator 10, different random numbers can be supplied to the plurality of terminals T1, T2, ..., Tn.

In the above embodiment, the case where only one random number generator 10 is used has been described, but the random number generator 1
0 may be plural as long as it is considerably smaller than the number of terminals T1, T2, ..., Tn connected thereto. In short, each one random number generator 10 has
This means that it can be used multiple times by multiple terminals.

[0021]

As described above, according to the present invention, a plurality of control units are connected in parallel to one random number generator, and the plurality of control units are connected to a plurality of terminals. They are connected one to one. Further, each of the control units includes a determination unit that determines whether or not the random number received via the reception unit is a regular random number that does not have a number repetition or other abnormality. With such a configuration, the present invention has an excellent effect that a random number generated by one random number generator can be simultaneously used by a large number of terminals and a complete random number can be provided to these terminals. .

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of a random number generator according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a specific configuration example of each control unit.

FIG. 3 is a diagram showing a conventional example of a conventional random number generator.

[Explanation of symbols]

 10 random number generator C1, C2, Cn control unit T1, T2, Tn terminal 16 receiving unit 17 inspection determining unit 23 control unit

Claims (3)

[Claims] 1. A random number generator, a control panel, a power supply unit, and a parallel connection with the random number generator, and a one-to-one correspondence with a plurality of terminals. A plurality of control units connected with each other, each control unit receiving unit for receiving the random number generated by the random number generator, and transmitting unit for transmitting the random number to the corresponding terminal. A determining unit that determines whether the random number received through the receiving unit is a regular random number that does not have a number repetition or other abnormality, and a random number that is determined to be a regular random number by the determining unit. Only sent to the corresponding terminal via the transmitting unit,
A control unit that controls not to send a random number determined to be not a normal random number to the terminal, a memory unit that temporarily stores random number data, and a selector unit that selects the random number data A random number generator characterized in that. 2. The control unit of each of the plurality of control units comprises:
The timing of transmitting a random number to the corresponding terminal via the transmission unit is controlled independently of the control units of the other control units, whereby the one random number generator can control the plurality of terminals. The random number generation device according to claim 1, wherein different random numbers can be supplied to the above. 3. Each control unit further comprises a test pattern generator, and the operation of itself can be checked by using the test pattern data generated by the test pattern generator instead of the random number. The random number generator according to claim 1 or 2.