JPH033596A - Power supply device for telemeter - Google Patents

Abstract

PURPOSE:To supply a prescribed measuring time power supply even when a preparation time is longer by providing a start signal transmission circuit to a receiver and a start signal reception circuit to a transmitter and using a start signal so as to drive a power supply switch circuit. CONSTITUTION:An FM telemeter device 2 and an antenna 1 are used in common and a start signal oscillation circuit provided to a receiver 6 is driven when the measurement is started and a start signal reception circuit provided to a transmitter 4 drives a power switch circuit 43 to supply power to prescribed measuring devices and transmitters. Thus, no large space is required except the FM telemeter device 2 and the consumption of a battery is suppressed during a time when no measurement is applied with only the addition of a simple device without requiring a large space. Thus, it is not required to take an assemble time into account for the assembling time in the case of the incorporation of the FM telemeter to the inside of complicated structure and the work to complicated structure such as troublesome battery exchange frequency is decreased.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a power supply device in a telemeter device for transmitting information from a moving object, and particularly to a power supply device for transmitting information provided in a moving object. The present invention relates to a power supply device in a telemeter device for preventing.

[Prior Art] As is well known, in order to perform measurements to obtain data while a moving object such as a construction machine or a rotating body of a component machine installed in the machine is being driven, it is necessary to An FM telemeter transmitting device is provided on a measuring device mounted on a rotating body or the like, and an FM telemeter receiving device is provided on an external fixed part to receive the measurement information. As the power source of the above-mentioned FM telemeter transmitter, a battery is generally installed, or power is supplied from a fixed part by electromagnetic induction.

[Problems to be Solved by the Invention] As mentioned above, when measuring to obtain data while a moving object such as a construction machine or a rotating body installed in the machine is being driven, it is necessary to In many cases, it takes a long time to install a measuring device and a transmitting device because it is attached to a structure that was not originally manufactured for the purpose of measurement, and depending on the conditions of the machine to be measured, e.g. In the case of equipment involving hydraulic circuits, it is necessary to raise the temperature of the pressure oil to a predetermined value at the time of measurement, so it may be necessary to drive the machine for a certain period of time before measurement. Moreover, since the power switch cannot be touched after installation, it is necessary to turn on the power switch before installation. Therefore, if it takes a long time to prepare for mounting, etc., the battery will be consumed during the preparation time. However, increasing the size of the battery is impossible due to the volume and structure of the target machine to which it can be installed, and not only does the actual measurement time become extremely short, but depending on the conditions, measurement may become impossible.

Furthermore, supplying power by electromagnetic induction requires a large-scale power supply circuit, primary coil, and secondary coil corresponding to the power to be supplied, but there are cases in which problems arise in that installation is not possible due to restrictions from the environmental structure. there were.

The present invention has focused on the above-mentioned conventional problems, and an object of the present invention is to provide a power supply device for a telemeter device that can supply power for a predetermined measurement time even if the preparation time is long.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a power supply device for a telemeter according to the present invention, which includes a transmitting device including an antenna and a battery, and a receiving device including an antenna. The device is characterized in that it consists of an activation signal transmitting circuit provided in the receiving device, an activation signal receiving circuit provided in the transmitting device, and a power switch circuit driven by the activation signal.

[Function] According to the above configuration, the antenna is shared with the FM telemeter device, and when starting measurement, the activation signal transmission circuit provided in the receiving device is driven, and the activation signal reception circuit provided in the transmitting device that receives the activation signal is driven. Since the power switch circuit is driven by the circuit to supply power to the predetermined measuring device and transmitting device, there is no need for a large space other than the FM telemeter device, and measurement can be performed by simply adding a simple device. It is possible to suppress battery consumption over time, so there is no need to consider the installation time when installing an FM telemeter device inside a complex structure, and there is no need to take into account the time required to install an FM telemeter device inside a complex structure. It is possible to achieve an excellent effect by using less amount.

[Example] Embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2 show circuit diagrams of an embodiment based on the present invention, and FIGS. 3 and 4 show configuration diagrams of an embodiment based on the present invention.

In FIG. 1, 1 is an antenna of an FM telemeter transmitter that also serves as a receiving antenna for the power supply device according to the present invention, and 2 is an FM transmitter including a measurement circuit that amplifies signals from a sensor (not shown in the drawing). It is. 3 is a battery that supplies power to the transmitting device, and 4 is a receiving device section of the power supply device based on the present invention. 5 is an antenna of an FM telemeter receiving device which also serves as a transmitting antenna of the power supply device according to the present invention, and 6 is an antenna for receiving and demodulating the signal from the FM transmitting device 2 and sending it to a measurement data processing circuit not shown in the figure. 7 is a transmitter unit of a power supply device according to the present invention, and 8 is a switch for starting the power supply device. F
Although the power circuits for the M receiving device 6 and the power supply device transmitting device section 7 are not shown, they are supplied from the power source provided in the main body of the machine to which the present invention is applied. In the case of ground equipment, the power is converted from commercial power and supplied.

FIG. 2 is a diagram showing the receiving device section 4 of the power supply device in more detail, and 1 is an antenna of the FM telemeter transmitting device which also serves as a receiving antenna of the power supply device according to the present invention described above, 41 is an antenna 1 of the FM telemeter transmitting device which also serves as a receiving antenna of the power supply device.
is a signal amplification circuit that amplifies the received signal; 42 is a detection circuit that detects an ON signal of the amplified signal; 43
is a switch circuit for turning off the power supply to the FM transmitting device 2 in response to the on signal.

Next, the present invention having the above configuration will be explained in detail.

The FM telemeter transmitting device 2, the power supply device transmitting device section 4, and the antenna 1 are attached to the specified mechanical structure to be measured, and the battery 3 is connected, and the target machine is started and subjected to the specified aging, and the measurement preparation is complete. After completing the above, the transmitting device section 7 of the power supply device connected to the FM telemeter receiving antenna
When a switch 8 provided at the antenna 5 is turned on, the transmitter section 7 transmits radio waves corresponding to the frequency of the antenna 5 via the antenna 5. The radio waves sent from the antenna 5 are received by the antenna 1 and then amplified by the signal amplification circuit 41.
Further, the on-signal detection circuit 42 detects the on-signal and drives the switch circuit 43. Since the switch circuit 43 is constituted by a relay, the ON signal causes the battery 3 to
Connect the output circuit of the FM transmitter circuit 2 and the power supply circuit of the FM transmitter circuit 2.
Power is supplied to the M transmission circuit 2. 2a is the receiving device section 4;
2 shows a power output circuit from the FM transmitter circuit 2 to the FM transmitter circuit 2.

In the above description, the switch circuit 43 was described as being constituted by a relay, but the relay may be of a latch type in order to reduce power consumption.
A non-contact switch using a semiconductor such as an FET may also be used.

Next, an embodiment to which the present invention is applied will be described with reference to FIGS. 3 and 4.

FIG. 3 shows an example in which the present invention is applied to measuring the axial force of a transmission, and 32 is an FM telemeter transmitting device for transmitting information from an axial force sensor (not shown). 3
1 is an antenna 3 which also serves as an FM transmitting antenna and transmits a signal from the transmitter of the power supply device, which is not shown in the figure.
The antenna receives radio waves from the FM telemeter transmitter 32, and operates a receiver section 34 including a switch circuit of a power supply device in response to an on signal from the transmitter, and supplies power to the FM telemeter transmitter 32. There is.

In this example, it took three hours to assemble the measuring device, and actual measurement was almost impossible, but by applying the present invention, continuous measurement for two hours became possible.

Next, another embodiment will be described with reference to FIGS. 4a and 4b. Fig. 4a shows an example in which the present invention is applied to measuring the axial force of a hydraulic pump, and Fig. 4a shows an FM telemeter transmitter for transmitting information from an axial force sensor (not shown).

Reference numeral 40 denotes an antenna that receives radio waves from an antenna 45 that also serves as an FM transmitting antenna and that transmits a signal from a transmitting section of the power supply device (not shown), and receives an on signal from the transmitting section. The receiving device section 46 including the switch circuit of the power supply device is operated, and power from the battery 48 is supplied to the FM telemeter transmitting device 47.

Figure 4b is a diagram showing the relationship between the above-mentioned pair of antennas and Performs rotational movement. The figure is a sectional view of the antenna section of the hydraulic pump, and it can be seen that the present invention has made it possible to change the shape of the piston.

[Effects of the Invention] As explained above, according to the present invention, the antenna is shared with the FM telemeter device, and when starting measurement, the start signal transmitting circuit provided in the receiver is driven, and the transmitter receives the start signal. Since the power switch circuit is driven by the start signal receiving circuit provided in the device and power is supplied to the specified measuring device and transmitting device, it is possible to easily add devices other than the FM telemeter device without requiring a large space. It is possible to reduce battery consumption during times when measurements are not being made, and therefore there is no need to consider the installation time when installing an FM telemeter device inside a complex structure, and there is no need to worry about the number of troublesome battery replacements. This has the advantage of requiring less work on complex horizontal artifacts.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of an embodiment according to the present invention. FIG. 2 is a detailed diagram of the circuit diagram shown in FIG. 1. FIG. 3 is a configuration diagram of an embodiment according to the present invention. FIGS. 4a and 4b show a block diagram of another embodiment according to the present invention. 1.31.40...Antenna 2.32.47...FM telemeter transmitter 3.43
．． 48-...Battery 4.34.46...Power supply device receiving device section 5.35
．． 45...Antenna 6...FM telemeter receiving device 7...Power supply device Transmitting device section 8...Switch 41...Signal amplification circuit 42...Detection circuit 43-...Switch circuit

Claims (1)

[Claims] In a telemeter device consisting of a transmitting device including an antenna and a battery, and a receiving device including the antenna, a starting signal transmitting circuit provided in the receiving device, a starting signal receiving circuit provided in the transmitting device, and a starting signal driven by the starting signal. A power supply device for a telemeter, comprising a power switch circuit.