JPS58168911A - Level for track with electric economizer - Google Patents

Abstract

PURPOSE:To reduce electric power consumption by controlling the lighting of an illuminating lamp of a liquid crystal display by the output of a photosensor and lighting the lighting lamp only when the ambient is dark. CONSTITUTION:The brightness of the ambience is detected with a photosensor 41, and the change in the quantity of light is converted to a change in resistance value, a change in voltage, a change in current, etc. and is fed as an input signal to a control device for an illuminating lamp. The voltage or current to be applied to an illuminating lamp 30 is controlled according to the brightness of the ambient to regulate the quantity of light of the illuminating lamp. In other words, the lamp 30 is lighted only when a level is measured in such a dark place where the display of a liquid crystal display 25 is illegible.

Description

[Detailed description of the invention] The present invention relates to a track level with a power saving device.

The 11m orbital water meter using a liquid crystal display does not have a light emitting function, so when using it in a dark place,
Requires A light equipment. Conventionally, as shown in FIGS. 1 and 2, there is a 5K display box 6 in which a liquid crystal display 5 is attached to a printed circuit board 4 provided in a box consisting of a cover 2 having a transparent window 1 and a case 3. The side surface of the liquid crystal display 5 KINi
Generally, a method has been used in which a bright tungsten light bulb 7 is attached and an illumination light switch 8 is pressed to illuminate the inside of the liquid crystal display 5 from the side of the liquid crystal display 65.

However, in this case, if a large liquid crystal display is used to make the display easier to read, the tungsten light bulb for lighting needs to be of a size commensurate with the display. Since the light must be turned on each time the track level and force/t are measured through the light switch, the power consumption is large (9) and the lifespan of the power phase battery is unbelievably short (which means that the battery needs to be replaced less frequently). Also, if a light switch is installed, its #
[#There was a drawback that the light switch had to be operated, making it difficult to read the level measurement work.

The present invention was made to eliminate the above-mentioned drawbacks, and detects the ambient brightness with a 7-oto sensor, converts changes in light amount into changes in resistance, voltage, current, etc.
It is used as an input signal to the light control device, and the light is turned on according to the brightness of Shuichi.
By controlling the voltage or current applied to the lamp and adjusting the amount of light from the illumination lamp, the illumination lamp can be turned on when adjusting the level in a dark place where the display on the liquid crystal display cannot be read.

The LCD display shows l! When measuring the level in a place where it is possible to take measurements, install a power saving device that turns off the bright lights.
To provide a track level with a power-saving device that reduces power consumption by #i bright lights by eliminating the need for a switch for bright lights.

Below, one embodiment of the present invention will be described in detail.
I will clarify.
1gs@ is a front view of one embodiment of the present invention.

FIG. 4 is a block diagram of the electrical control system shown in FIG. 3, and FIG. 5 is a plan view of the indicator box of a track level with a power-saving device that uses tungsten braze bulbs for illumination lights.

FIG. 6 is a circuit diagram of a lighting control device using a tungsten light bulb as the lighting.

FIG. 7 is a (b) schematic diagram of an illumination light control device using light emitting diodes as illumination lights.

FIG. 8 is a plan view of a display box for a track level with a power saving device using light emitting diodes as illumination lights.

The same numbers in FIGS. 3 to 8 indicate the same members.

A track level 9 with a lamp device (hereinafter abbreviated as track level fF9) according to an embodiment of the present invention shown in HS diagrams to FIGS.
consists of a level detection bar 10 and a display set 1.

The level detection bar 10 is a contact @1 with lower plates 12 and 13 attached to both ends thereof, which contact the left and right rails of the track, respectively.
4. Is and grip 1 connecting these contacts s14 and 15
1116 and this Kengo bar 17.
A level detector 18 is attached to the contact 914 of
The level detector 18 is attached to the contact 1II14 of the receptacle 19.

The level detector uses a commercially available tilt angle detector that detects the displacement of a pendulum immersed in damper oil from its vertical position with respect to the horizontal plane by converting it into voltage using a magnetoresistive element or differential transformer. Good too.

Display box 11 is the level for orbit! A zero point adjuster 20 that adjusts the zero point of a9, a low pass filter 21 that inputs the output of the level detector 18 of the level detection bar 10, removes high frequency components due to disturbances such as vibrations, and outputs it, and a zero point adjustment @20 and the output of the one-pass filter 21, and a differential amplifier 22 which amplifies and outputs the difference;
an AD converter 23 that converts the anadjusting amount of the output of the 422 into digital JllK and outputs it; a decoder 24 that inputs the output of the muro converter 23, converts it into an input signal to the liquid crystal display 250, and outputs it;
Input the output signal of.

A liquid crystal display 25 that digitally displays this, and an illumination lamp 30 attached to the narrow surface of this liquid crystal display 25.

A photo sensor 41 mounted near the liquid crystal display 25 with its light-receiving surface facing upward, a forward electrical system consisting of a lighting control device 142 operated by the photo sensor 41, a power supply value fi2g, and a constant switch. 27, and a connecting cable 29 having a plug 28 attached to one end for connecting to the receptacle 19 of the level detection bar 10.

The power #I device 26 may convert a battery or an external AC power source to KdlK using a rectifier I (not shown);
If necessary, it may be connected to a constant voltage device or the like.j Next, the operation of the track leveling system with a power saving device having one or more configurations will be explained.

First, the plug 28 of the connection cable 211 of the display box 11
, followed by the level detection bar 10 receptacle XSK class.

When the measurement switch 27 is closed, the voltage is applied from the power supply value fz6 to the zero point - adjustment device 201 - bus filter 21 . Differential amplifier 22, AD converter 23. Decoder 24, m light 3
0. are applied to the illumination light control a* 1142, respectively.

Then, if necessary, adjust the zero point of the track level 9 using the zero point adjuster 20. Next, grip the grip s16 of the level detection bar 10, 13 is placed in contact with the top surface of the head of the left and right rails of the track, the underwater detector 18 converts the level and cant of the track into an electrical analog cover, converts it into a voltage, and outputs it, and the output is a low-pass It is input to the filter 21.

- The one-pass filter 21 connects the level detection bar 10 to the top surface KII of the rail srs from the input from the level output device l$.
High frequency components caused by disturbances such as vibrations caused when the train is placed in contact with the rails and vibrations caused when a train passes through an adjacent moldy track are removed and output to the differential amplifier 22.

j! ! The signal amplifier 22 inputs the output of the -one-pass filter 21 and the output of the zero-point integer 20, amplifies the difference, and outputs the amplified difference to the Muro converter 23. The MURO converter 23 converts the input signal inputted from the difference calculator 22 into an input signal of 2% on the liquid crystal display and outputs the signal. The liquid crystal display @U inputs the output signal of the decoder 24 and digitally displays the level of the trajectory and positive/negative cant. Therefore, the operator must set the track level l! Just grasp the grip part 16 of iF9/(-17) and read the numbers indicated on the left and right rails of the bottom plate 12, 13'l of the contact parts 14 and 15, and the track at that position will be determined. The level and positive/negative cant of can be measured.

On the other hand, the photosensor 41 detects the brightness of the surroundings, converts the change in light amount into a change in resistance value, voltage change, or current change, etc., and uses it as a light amount input signal of the illumination lamp control value @42. By turning on the illuminating lamp 30 when the display on the liquid crystal display 25 is too bright to read, and not turning on the illuminating lamp 30 when the surroundings are bright and the brightness is such that the display can be read, the illuminating lamp 30 Since the light is turned on only when necessary, the power consumption by the M bright light SOK can be reduced.

The M6 diagram is a 30m tungsten light bulb in the lighting light 30 of the M4 diagram.
It is a power saving control circuit diagram when using.

In the example using the photo sensor 41 (CDS), when the measurement switch z7 is turned on, a voltage is applied to the tungsten bulb 30a and the current limiting resistor 42 of the wA light control device 42.

When the Ml area is dark, the resistor of the photosensor 41 becomes ﾾ, and part of the current that has passed through the measurement switch 27 passes through the current limiting resistor 42m, and is transferred from the transistor 42b) to the emitter Ktl, and then to the transistor 42b. The collector and emitter terminals become conductive, and the 30m tungsten bulb lights up.

In addition, when the surroundings are bright, the resistance value of the foot sensor 41 is low (KH), and the current that has passed through the resistor 42a passes through the photo center t43 and flows to the ground a, so the base of the transistor 42b , no current flows through the emitter, the transistor 42b is turned off, and the tungsten field 30 does not light up.

#I7 shows the illumination light control device 42 when using the tungsten light bulb 30a, K light emitting diode 30b, and k shown in FIG.
However, the display box 5 is shown when a light diode is used. Figure 7 shows '1' as a lighting light.
14- tungsten bulb 30m light emitting diode 30
The operation is the same as in Figs. 4, 5, and 6- except that the illumination lamp is replaced by a light emitting diode sob K.
By doing this, the power consumption of the lighting lamp itself can be reduced.

As described above, the track level with power-saving device of the present invention reduces the power consumption by lighting lights, which was a drawback of conventional track water meters using liquid crystal displays, and extends the life of the battery. It has great effects, such as reducing the frequency of battery replacement (and increasing level measurement work efficiency).

[Brief explanation of drawings]

#11@ is a plan view of a conventional display box, FIG. 2 is an S cross-sectional view of FIG. 41 viewed from the ■ arrow direction, and M3 is a front view of an embodiment of the present invention. Figure 4 is a block diagram of the drowsiness control system shown in Figure 3, Figure 5 is a plan view of an indicator box using a tungsten light bulb as the illumination light, and Figure 6 is a soothing light when a tungsten light bulb is used as the illumination light. FIG. 7 is a plan view of an illumination control device using light emitting diodes for illumination, and FIG. 8 is a plan view of a display box using light emitting diodes for illumination. 9...Track water 111 device with power saving device, 10...Level configuration bar, 11...Display box, 14, 15...Contact part, 16...Gripper, 17...Horizontal Side bar, 18・
・Level detector, 20-・Zero point-11 device, 21...
Low-pass filter, 22...Differential filter, 23...A
D converter, 24... decoder, 25... liquid crystal display. 26...Electric power 111% direct, 27...-1 constant switch,
29... Connection casele, 30... Lighting t, J',
30m...Tungsten light bulb, 30b...Light emitting diode, 41...Photo sensor, 42...Lighting lamp control device, 43...Current limiting resistor, 44...Tiger 77'-star. Shibaura Seisakusho Co., Ltd. (Figure 2) Figure 4 - Figure 1 Figure 5

Claims (3)

[Claims] (1) Connect each contact part to the left and right rails of the track.
In a track level that determines the level and cant of a track, an inspection bar having a contact part of the left and right rails at both ends mK11 and a grip part that connects each of the contact parts; Attached to the measuring bar. A level detection bar consisting of a track level gauge and a level detector that detects a positive or negative cant electrical 7 ρ value, a zero point adjuster that adjusts the breath of the track water qlI device, and the level detector. The output of the level detector is inputted through a low-pass filter that removes high-frequency components caused by disturbances such as vibration, the output of the zero AdlE device, and the p-bus filter, and the output of the level detector is inputted. a differential amplifier that increases the difference and outputs it; a D converter that converts the analog filter of the output of the SMM width amplifier into a digital signal;
I) A decoder that inputs the output of the converter, converts it into an input signal of the display device, and outputs the signal. a liquid crystal display that inputs the output signal of the differential and digitally displays the level and cant of the trajectory, and an electric S device;
Consists of a power switch, a power saving device consisting of a power switch, an illumination light of a liquid crystal display, a illumination control device for controlling the lighting of this illumination light, a seven-point sensor, and a display box consisting of a connection cable connected to the level detection bar. A track level with a power-saving device featuring unique features. (2) A track level with a power saving device according to claim 1, in which a tungsten light bulb is used as the FIJH light of the liquid crystal display. (3) A track level with a power saving device according to claim 1, wherein a light emitting diode is used as the illumination light of the liquid crystal display.