JPS62142425A - Set spare system power unit - Google Patents

Abstract

PURPOSE:To decrease possibility of causing off of a circuit even when a trouble occurred in other radio equipments when a power source section is out of order by using spare system in the power source section. CONSTITUTION:Output of a power source section 14 is applied through a diode 15 and output of a power source section 34 is applied through diodes 36, 37 to a #1 presently used radio equipment 1. When output voltage of power source sections 14, 34 is 10V, voltage at a point passed through the diode 15 is lowered by about 0.7V by resistance of the diode itself, and becomes about 9.3V, and voltage at a point passed through diodes 36, 37 becomes about 8.6V. Voltage of 9.3V is supplied from the power source section 14 to the #1 presently used radio equipment. When voltage becomes 0V due to occurrence of fault in the power source 14, about 8.6V is supplied from the power source section 34. Accordingly, the #1 presently used radio equipment 1 operates normally, and not switched to a spare radio equipment.

Description

[Detailed Description of the Invention] [Summary] In a set backup system power supply device, the device and its power supply unit are both connected in a set backup system, so even if failures occur in the power supply unit and the device, the line remains intact. The possibility of failure is reduced.

[Industrial application field]

The present invention relates to, for example, an improvement in a connection method between a wireless device and a power supply unit.

Generally, multiplex radio equipment uses a set backup method or a route backup method to minimize line disconnections during operation.

For example, in the case of the 50χ set backup system, if a failure occurs in the active device, it is switched to the backup device to prevent the line from being disconnected, but if two failures occur at the same time, the power supply unit and the wireless device, the line will be disconnected. . Therefore, there is a need for a power supply connection method that reduces the possibility of line disconnection even in such cases.

[Conventional technology]

FIG. 3 shows an explanatory diagram of a digital radio system employing the 50χ set reserve method.

In the figure, the bipolar signal from the carrier terminal station is applied to the #1 active wireless device l via the switch 4. and,
The code processing unit 11 performs bipolar/unipolar conversion, serial/
After processing such as parallel conversion and speed conversion, the transmitter 12
The carrier wave is modulated by the carrier wave, and is transmitted from the antenna via the switch 5 to the other station at a frequency fo, for example, as a horizontally polarized wave.

On the other hand, #2 working wireless device 3 is also the same as #1 working wireless device (
After encoding the bipolar signal from the carrier end station, the carrier wave is modulated and sent to the opposite station at the same vertically polarized frequency fo. Note that the backup radio device 2 has the same configuration as the Ill and #2 radio devices.

Here, for example, if a failure occurs in the active radio equipment 11, the switch 4 operates and the bipolar signal from the carrier terminal station is applied to the backup radio equipment 2, from which the frequency f
The horizontally polarized wave of o is transmitted to the other station through the switch 5° antenna 6.

FIG. 4 shows a block diagram of a conventional example, which is used for the wireless system shown in FIG.

As shown in Figure 4, each wireless device is supplied with power from its corresponding power source, so when the active wireless device is switched to the backup wireless device number, everything including the power source is switched to the backup device. .

Furthermore, 14. , 24 and 34 are #1 active wireless devices, respectively.

The power supplies of the standby radio device and 12 active radio devices are shown, respectively.

[Problem that the invention seeks to solve]

Here, if, for example, a failure occurs in the power supply section 14 and the operation of the #1 working radio device l is cut off, - as described above, the bipolar signal from the carrier terminal station is transmitted to the other party via the standby radio device 2. However, if a failure occurs in the #2 working radio equipment W3, it will not be possible to switch since the backup radio equipment is used, and the 12 working line will be disconnected.

Means for Solving Problem C] As shown in FIG. The first output terminal of the second power supply unit 8 having the same configuration as the first power supply unit is connected to the second output terminal of the power supply unit 8 via the second device 12 and the diode 9. This problem is solved by the set standby type power supply device of the present invention, which is connected to the second output terminals of the power supply unit, respectively.

[Effect]

In the present invention, the device is connected to a first power source having a high output voltage and a second power source having a lower output voltage than the first power source.

In other words, power is normally supplied from the first power supply section, but even if a failure occurs in this power supply section and the device does not operate normally, power is not switched to the backup device and power is supplied from the second power supply section. supply.

Therefore, even if a failure occurs in another device while a failure occurs in the first power supply section, it is possible to switch to a backup device, thereby reducing the possibility that the line where the failure occurred will be disconnected later.

〔Example〕

FIG. 2 shows a block diagram of an embodiment of the invention.

Note that the same symbols indicate the same objects throughout the figures.

The operation shown in FIG. 2 will be explained with reference to FIG. 3, using a wireless device as an example of the device shown in FIG.

As shown in the figure, there is a diode 15 in the 11 active radio equipment 1.
The output of the power supply section 14 and the output of the power supply section 34 are applied via the diode 36 and 37, respectively.

Now, assuming that the output voltage of this power supply section 14.34 is 10V, the voltage at the point where it passes through diode 5 is reduced by about 0.7V due to the resistance of the diode itself, and is about 9.3V, which passes through diode 36.37. The voltage at the point is approximately 8.6v. Therefore, 9.3V is supplied from the power supply unit 14 to the #1 current P-line device.

Here, if a failure occurs in the power supply unit 14 and the voltage becomes Ov, approximately 8.6V is supplied from the power supply unit 34, so the #1 active wireless device 1 operates normally and does not switch to the backup wireless device 2. .

Thereafter, when a failure occurs in the #2 active wireless device 3, the #2 active line can be switched to the standby wireless device 3 and the #2 active line will not be disconnected.

Although the capacity of the power supply unit is doubled, even if failures occur in the power supply unit and the wireless device, the possibility of disconnection of the line is reduced, and the reliability of the line is improved.

Further, the number of diodes varies depending on the output voltage from the power supply section and the voltage supplied to the wireless device, but the minimum number is one diode connecting the power supply sections. Here, the above explanation was about the 50χ set preliminary method, but the 10
In the 0χ set preliminary method, the switching operation of the power supply section is similarly performed.

〔Effect of the invention〕

As explained in detail above, since the power supply unit also uses a standby system, there is an effect that even if a failure occurs in another wireless device during a failure in the power supply unit, the possibility of line disconnection is reduced.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, FIG. 3 is an explanatory diagram of a wireless system, and FIG. 4 is a block diagram of a conventional example. In the figure, 7 is the first power supply unit 8, the second power supply unit 9, IO is the diode, 11 is the first device, left, the principle block of the invention (the figure shows an inferior sweep stage) L4 ! : 46 cismohim to the king of merit]
Nijo 3 mouths

Claims (1)

[Claims] In a set reserve type device, the first output terminal of the first power supply section (7) is connected to the first device (
11) and the second power supply section (8) via the diode (10).
) to the second output terminal of the second power supply section (8) having the same configuration as the first power supply section.
The output terminal of the second device (12) and the diode (9)
1. A power supply device of a set standby type, characterized in that the power supply device is connected to the second output terminals of the first power supply section through the respective second output terminals of the first power supply section.