JPS6148240A - Multi-channel radio equipment - Google Patents

Abstract

PURPOSE:To change optionally display of a channel number by writing a channel data from an input section to a rewritable storage device by means of a microcomputer, reading it and displaying a channel number. CONSTITUTION:A channel CH display content desired to be changed by the switch operation of an input section 20 is supplied to the microcomputer CPU22 via an I/O interface circuit 21. The CPU22 writes it to a rewritable storage device 24. The CPU22 reads a required display data from the storage device 24 in response to the CH selection in normal operating state and displays it on a display section 25. Thus, the CH display is changed simply in such a way.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a multi-channel radio device that can display any channel number.

[Conventional technology]

In a multi-channel radio, when one of a plurality of frequencies is selected for transmission/reception, the channel number corresponding to the selected frequency is often displayed. For example, in the case of a 7-channel radio, the channel number is "1" ~
It is common to use "7". FIG. 4 is a block diagram showing an example of this type of radio equipment, in which 1 is a transmitting and receiving antenna, 2 is a transmitting section, 3 is a receiving section, and 4 is a channel 1 (
CH.

1) Transmission (TX) to channel 7 (CH, 7)
and a crystal oscillator (XtaI2) group for reception (RX),
5 is a 7-segment channel display, 6 is a decimal/7 segment 1-conversion circuit that drives the display, 7a, 7
b is a rotary channel selection switch.

The switches 7a and 7b are interlocked, and when the crystal resonator group 4 is selected with the switch 7a, the corresponding channel number (in decimal display from 1 to 7) is input from the switch 7b to the conversion circuit 6, and the conversion circuit It is converted into a 7 segment signal. In the illustrated example, the channel number "1" is displayed on the display 5 corresponding to the rotational position (1) of the switches 7a and 7b. This display 5 shows the switch 7a.

r2J, r3J by rotating 7b clockwise.

...Changes sequentially up to "7".

However, from the standpoint of an individual user who actually uses a multi-channel radio, the above channel display method may not be appropriate.

For example, in a relay system that can be connected to a wired telephone in the United States, the channel numbers are rlJ and r3J.

r5. J, r7J, r9J, rill, r13
Since it is discontinuous with J, it is desirable that the channel display be like this. Furthermore, the user may want to give each channel a special meaning.

-For example, when a user divides the assigned 8 channels into 2 groups depending on work, the 1st group is
ll, r12J, r13J, r14J, and the second group is r21J, r22J.

It may be easier to understand if displayed as r23J or r24J. Alternatively, it would be convenient if channels could be classified and displayed according to communication between base stations and mobile stations and communication between mobile stations. Also, if you set a channel that has priority over other channels (priority channel), it is easier to distinguish it from other channel numbers (general channels are numbered "1" to "12", is expressed as "50").

In order to meet such requests for displaying various channel numbers, the decimal/child segment conversion circuit 6 shown in FIG. Just replace it. In other types of display devices, the display portion may be mechanically changed. for example,
In FIG. 5+a), there are a plurality of push-button channel selection switches Ila, llb, . . . on the front of the operation unit 10.
are arranged, and a selection switch 11a is arranged on the same side.
.

Channel display labels 12a, 12b, . . . are provided corresponding to channels 11b, . Also, in the same figure (bl), a rotary channel selection switch 13 is used, and a channel display label 1 is attached to the brim 13a.
2a, 12b, . . . are exposed from the channel display window 14. In these systems, any channel number can be displayed by replacing or pasting the labels 12a, 12b, . . . .

[Problem that the invention seeks to solve]

However, the method shown in FIG. 4 has the disadvantage that workability is poor, and as the number of channels increases, the occupied area and cost increase.

Moreover, once a display pattern is set, it is not easy to change to another pattern, and furthermore, the inside of the centimeter must be modified, which may cause trouble. Also the fifth
The method shown in the figure tends to be mechanically complicated, and it is inconvenient because it requires preparing a variety of labels that are considered necessary. In addition, a large number of channels takes up a large area, making it difficult to implement. The present invention attempts to improve this point.

[Means for solving problems]

The present invention provides a multi-channel radio device in which transmission and reception frequencies for multiple channels can be set using a microcomputer and a rewritable storage device, in which a storage area for channel number display data is set in the storage device and data is input into the area. The present invention is characterized in that arbitrary display data is written from the display section, and when changing channels, the corresponding display data is read out and displayed on the display section.

[Effect]

Any channel number display data can be stored in the rewritable storage device, and can be easily changed by instructions from the input section.

The storage device for this purpose and the microcomputer that controls it can be the same as those used for frequency setting of radio equipment, and only a small amount of additional hardware is required. This will be explained in detail below with reference to illustrated embodiments.

〔Example〕

FIG. 1 is a schematic block diagram of the present invention, and 20 is an input section including a channel selection switch and other switches. By operating the switch on this input section 20, the channel display contents to be changed are input to the input/output interface circuit 21.
The information is transmitted to the microcomputer (hereinafter referred to as CPU) 22 through the CPU.

CI) U22 writes this to storage device 24. In normal use, the CPU 22 reads necessary display data from the storage device 24 in accordance with the channel selection operation, and reads out necessary display data from the display section 24.
Displayed on 5. By doing this, you can easily change the channel to fluorine. Furthermore, it is not necessarily necessary to open the radio to change data.

As the storage device 24, it is necessary that the contents will not be lost even if the power is turned off.
M), EEPROM (electrically erasable FROM),
A RAM or the like with a power bank amplifier can be considered. UV-
In the case of EPROM, erasing necessary to change data is performed by irradiation with ultraviolet rays, which requires an eraser separate from the radio, which is somewhat inconvenient. Data may be written to the storage device 24 by the wireless device alone as described above, but it may also be written by an external writer using a removable storage device. This is more convenient when writing the same data to a large number of radio devices. Note that 26 is a storage device such as a RAM or ROM necessary for the operation of the CPU 22.

FIG. 2 shows an embodiment of the present invention applied to a PLL wireless device with a maximum of 16 channels. In the figure, 27 is a transmitting/receiving section of the wireless device, and 28 is a PLL synthesizer section that varies the frequency of transmitting and receiving. The input section 20 in FIG. 1 is shown divided into a rotary channel selector 20a and a general switch IJ 20b such as a mode changeover switch and a program switch. Further, the storage device 26 for the CPU is shown divided into a random access memory (RAM) 26a and a read-only memory (ROM) 26b for storing programs. Although EEPROM is used as the storage device 24,
The area is used as shown in the table below.

Table 1 The rotary channel selector (switch) 20a can be used in two ways. In other words, in the current channel switching mode, turn clockwise (UP) to change the storage area (memory order) in the EEPROM 24 to the larger number, and conversely, turn counterclockwise (DO).
WN>, the number is changed to the smaller one. On the other hand, when the writing mode is set, the UP/DOWN is used not for channel switching but for setting (changing) display data of the channel number. That is, each digit of the channel number is 0 to 9.
(This change can be confirmed on the display unit 25). Writing is performed by pressing the program switch.

The operation will be described below with reference to the flowchart in FIG. Assuming that the current transmitting/receiving frequency data is Fn and the display data is Dn, by turning the rotary channel selector (switch) 20a clockwise (UP), the CPU 2
2 is the next frequency data F rr from the EEPROM 24
+1 is set in the PLL synthesizer section 28, and the transmitting/receiving circuit section uses that frequency. At the same time, the corresponding channel display data D n+ l is displayed on the display section 25 . If it is turned counterclockwise (DOWN), it becomes Fn-1 and Dn heat. Here, Dn-+, Dn, Dn++ are, for example, r3
This is data for displaying channel numbers such as "J r5J IIO", and also Fn-1+ F n+
F rl+ 1 is 450.025 MHz, 450
．． This data corresponds to frequencies such as 0.050 MHz and 450.100 MHz.

In order to change n and Fn like this, press the mode changeover switch of the general switch 20b to set it to the write mode. Next, turn the rotary channel selection switch 20a to select the content Dn you want to display one digit at a time, and select the program S.
Press W (switch). Next, in the same way, frequency data F
Set n and write. In this way, the number of channels to be mounted is written in the EEPROM 24 by pairing Dn and Fn.

〔Effect of the invention〕

As described above, according to the present invention, since the display of channel numbers can be changed arbitrarily, it is possible to use the channels according to the user's wishes, but there are also the following advantages.

(]) Since a storage device and CP TJ are used, the display contents are not limited to numbers but can also be characters. For example, Priority Channel (Priority cl+an
nell), it is also possible to display characters with meanings such as rPJ. If a tosol matrix display or the like is used instead of a 7-segment i-display, a more easily understandable display will be possible.

(CPU is commonly used in 21PLL system radios and multi-function radios, and the functions of the present invention and C
It is easy to share a PU. Therefore, even if the functions of the present invention are added, there is no need to add a large amount of circuitry.

(Since the 31 CPU memorizes the installed (usable) frequency and displays only the corresponding channel,
There is no possibility of displaying unimplemented channels. For example, in the conventional system shown in FIG. 4, even if only three channels are installed, the remaining four channels are displayed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an overview of the present invention, FIG. 2 is a block diagram showing an embodiment of the present invention, FIG. 3 is a flowchart thereof, and FIGS. 4 and 5 show a conventional multi-channel radio device. FIG. 7 is an explanatory diagram showing different examples of channel number display. In the figure, 20 is an input section, 22 is a microcomputer, 2
4 is a storage device, and 25 is a display section. Applicant Fujitsu Ten Ltd. Representative Patent Attorney Minoru Aoyagi (a) (b) (4 11a Ilb〜－〜－

Claims (1)

[Claims] In a multi-channel radio device in which transmitting and receiving frequencies for multiple channels can be set using a microcomputer and a rewritable storage device, a storage area for channel number display data is set in the storage device, and arbitrary input data is input from the input section into the storage area. A multi-channel radio device characterized in that display data is written, and when switching channels, the corresponding display data is read out and displayed on a display section.