JPS59133694A - Display for memory cartridge - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention stores power consumption data measured for each load in a memory cartridge, collects the memory cartridge, and stores the data stored in the memory cartridge. The present invention relates to a display device for a memory cartridge in an apparatus that measures power consumption by transferring measured data to a separately provided storage section.

[Technical background of the invention and its problems]

As shown in FIG. 1, a conventional load power measuring device includes a power measuring section 10 that measures the amount of power of a load, and this power measuring section 1.
There is a memory cartridge 20 that stores the power amount when set to 0, and when the memory capacity of this memory cartridge 20 is sufficiently filled, the power measurement unit 10 stores the power amount in the memory cartridge 2.
0 is removed and the storage unit 30 stores the amount of electric power stored in the memory cartridge 20 by transfer. In order to measure a large number of load powers, a power measuring section 10 and a memory cartridge 20 are arranged for each load.

The power measurement section 10 includes a power calculation section 11, a counter 12, an interface section 13, a first connection section 14,
It consists of a control section 15 and a power supply 16. First, the power calculation unit 11 measures the power consumption WL of the load and sends a power signal of the power consumption every predetermined power amount. This power signal is counted by the counter 12 to become a count signal, and the control unit 15 outputs the power signal to the counter 12 at predetermined intervals.
is output from. The interface section 13 is the counter 12
The count signal and the control signal for the control section 15 are output. The count signal and control signal are sent to the memory cartridge 20 attached to the power measuring section 10 via the first connection section 14 and the second connection section 2l.

This memory cartridge 20 includes a second connection section 14, an interface section 22, an IC memory section 23, and a DC power supply 24. The interface section 22 receives the count signal and the control signal and sends them to the IC memory section 23. I
The C memory section 23 stores the count signal according to the command of the control signal.

As described above, the load power amount is adjusted to the memory cartridge 20.
is stored in the IC memory section 20 of the IC.
When the memory section 23 is sufficiently filled, the memory cartridge 20 is removed from the power measurement section 10. Then, another memory cartridge that is not stored is attached to the power measuring section 10, and the power consumption is subsequently measured.

The memory cartridge 20 is attached to the storage section 30 installed at another location via the second connection section 21 and the third connection section 31 of the storage section 30.

The power consumption thus stored is read out by the data reading section 32 and sent to the magnetic tape storage section 33. As a result, the power consumption amount stored in the memory cartridge 20 is transferred to the storage section 30. Here, the operations of the data succession section 32 and the magnetic tape storage section 33 are controlled by a control section 34. When the transfer is completed, the power consumption stored in the memory cartridge 20 is transferred to the data reading section 32.
will be erased by Then, the memory cartridge 20 whose memory has been erased is attached to the power measuring section 10 again and the power consumption is repeatedly stored. Note that when the memory cartridge 20 is attached to the power measuring section 10 or the storage section, it is operated by the power supplies 16 and 35, and in other cases, it is operated by the built-in DC power supply 24.

Therefore, since the memory cartridge 20 used as described above stores and erases the power consumption in the IC memory section 23, it is difficult to tell whether it is the memory cartridge 20 that stores information just by looking at the appearance of the memory cartridge 20.
It is not easy to determine whether the memory cartridge 20 has been erased. In the case of the device shown in FIG. 1, by attaching the memory cartridge 20 to the power measuring section 10 or the storage section 30, the control sections 15 and 32 display whether the data is stored or erased. However, in this display method, since a large number of power measuring units 10 are arranged over a wide area, it takes time and effort to collect the memory cartridges 20, perform discrimination, return them, and attach them to the power measuring unit 10. It's inconvenient.

The memory cartridge 20 is replaced at regular intervals, similar to meter reading work, and the amount of power consumption stored in the collected memory cartridge 20 is transferred to the storage unit 30. Therefore, there is no need to determine the amount of memory stored in the C memory section 23 or how much more data can be stored. However, it is necessary to determine whether the memory cartridge 20 stores the power consumption required for replacement or whether the memory has been erased.

Therefore, the determination has conventionally been performed using the following method. FIGS. 2 and 3 show block diagrams of conventional devices for determining whether data has been stored or erased. First, the apparatus shown in FIG. 2 will be explained. The memory cartridge 20 is attached to the power measuring section 10 and stores the amount of power consumption. In this case, the indication that storage is being performed is that power is supplied from the power supply 16 of the power measurement unit 10 to a display tube (electrochromic display; hereinafter referred to as ECD) 25 with a memory function provided inside the memory cartridge 20. This is done by supplying the light and lighting it up. When the memory cartridge 20 is removed from the power measuring section 10, the memory function of the ECD 25 keeps the light on to indicate that it has been stored.

Further, the display after the memory cartridge 20 is attached to the storage unit 30 and the transfer is performed is performed by applying a voltage value different from the voltage value applied from the power supply 16 of the power measurement unit 10 to the memory cartridge 20 from the storage unit 30 to the ECD 25. This is done by turning off the light.

Therefore, whether the data has been stored or erased can be determined by looking at the display on the ECD 25 of the memory cartridge 20. However, since the lighting of the ECD 25 is held by the memory function of the ECD 25, there is a drawback that the lighting of the ECD 25 is not carried out for a long period of time.

Next, the apparatus shown in FIG. 3 will be explained. The memory cartridge 20 is attached to the power measuring section 10 in the same way as in FIG. The memory cartridge 20 stores the measured power consumption. In this state, the set signal section 17 provided in the power measurement section 10 sends a set signal to the latch section 26 of the memory cartridge 20. As a result, the liquid crystal display tube LCD 27 is turned on by the AC signal from the oscillation section 28. Furthermore, when the memory cartridge 20 is attached to the storage section 30 and transfer is performed, a set signal is sent from the set signal section 17 to the storage section 30, the latch section 27 of the memory cartridge 20 is released, and the LCD 27 is turned off. An indication of erasure is displayed.

Therefore, even in the apparatus shown in FIG. 3, it is possible to determine whether data has been stored or erased.

However, the latch section 27, LCD 28, and oscillation section 26 must be newly provided, making the memory cartridge 20 large and inconvenient to handle.

Furthermore, in this device, the battery, which is the DC power source 24, is consumed relatively quickly, making it uneconomical.

[Purpose of the invention]

The present invention provides a memory cartridge display that can easily and over a long period of time determine whether measurement data is stored in the memory cartridge or whether the memory has been erased, is not structurally large, and further reduces battery consumption. The purpose is to provide equipment.

[Summary of the invention]

In the present invention, when the memory cartridge is attached to the power measuring section, the connection section of the power measuring section contacts one of the slide levers to interlock the display section, so that the memory cartridge is connected to the power measuring section. A display indicating that the measurement data is to be stored is displayed, and the display is held by a display holding mechanism, and the measurement data is stored in the memory cartridge, and the memory cartridge is removed from the power measurement unit. When attaching the storage unit to the storage unit, the connection part of the storage unit contacts the other slide lever that does not contact the first connection part to interlock the display unit, thereby displaying the measurement data stored in the memory cartridge. The present invention is a memory cartridge display device that displays an erased display and holds this display using the display holding mechanism.

[Embodiments of the invention]

Next, one embodiment of the present invention will be described with reference to FIGS. 4 to 7. In these figures, the same parts as in FIGS. 1 to 3 are designated by the same reference numerals. First, FIG. 4 is an external view showing the case of the memory cartridge 20. As shown in FIG.

The case of this memory cartridge 20 is formed of an upper case 40 and a lower case 41, which are fastened with screws 42. Guide grooves 43 are provided on both sides of the lower case 41 to prevent the memory cartridge 20 from being attached in the opposite direction when attached to the power measuring section 10 or the storage section 30. FIG. 5 is a sectional view of the memory cartridge 20 attached to the power measuring section 10,
Inside the memory cartridge 20, an interface section 22, an IC memory section 23, and a DC power supply 24 are arranged on a circuit board 44.
, and a connecting end 29 are built-in. The interface section 22 and the IC memory section 23 are constituted by an integrated circuit IC. A display section 50 is provided on the inner surface of the upper case 40.

FIG. 6 is a configuration diagram of the display unit 50 when the memory cartridge 20 is attached to the power measurement unit 10. This display section 5
0 is configured as follows. A swing lever 51 is rotatably provided on the upper case 40 by a support shaft 52. A slide lever 5 is provided at both ends of this swing lever 51.
3 and 54 are rotatably provided by pins 55. The swing lever 51 and the slide levers 53 and 54 are configured to interlock with each other. Slide lever 53,5
4 is provided with slide guide portions 56 and 57 that allow slide levers 53 and 54 to slide in parallel to the mounting direction. Further, the slide lever 53 is provided with a display character section 58 and a display holding mechanism 59. The display character portion 58 indicates that the slide lever 53 is connected to the first connecting portion 1.
It is provided at the other end, which is different from the one end that contacts 4, with a predetermined width. The characters "record" and "erase" are written in this display character section 68 so as to be displayed on the display window 60 of the upper case 40 by sliding the slide lever 53. The display holding mechanism 59 is composed of holding holes 59a, 59b and a protrusion 59c provided in the upper case 40 and abutting against the holding holes 59a, 59b, and holds the display state of recording or erasing.

The memory cartridge 20 configured as described above is attached to the power measurement section 10 and the storage section 30. 5 and 6 show the state in which it is attached to the power measuring section 10, and the seventh
The figure shows the state where it is attached to the storage section 30. First, the first connection section 14 of the power measurement section 10 has a rectangular parallelepiped shape that is inserted into the memory cartridge 20 as shown in FIGS. 5 and 6, and contacts the slide lever 53 to interlock the display section 50. This is to display the record. The first connection part 14 is connected to a first connection part 1 through which a measurement data signal is passed.
Four connection ends 6l are provided. Further, the second connection section 31 of the storage section 30 is connected to the first connection section 1 as shown in FIG.
4, it has the shape of a rectangular parallelepiped and contacts the slide lever 54 to move the display section 50 in the opposite direction to the recording display to display erasure. Further, the guide protrusions 62 and 63 of the power measuring section 10 and the storage section 30 fit into the guide grooves 43 of the memory cartridge 20 to guide the attachment of the memory cartridge 20.

Next, the operation of the apparatus configured as described above will be explained. A large number of power measurement units 10 are installed to measure the amount of power for each load.

First, the memory cartridge 20 is attached to the power measurement section 10 to store measurement data of the amount of power. The memory cartridge 20 is inserted and attached by fitting the guide groove 43 and the guide protrusion 62. As a result, the slide lever 53 comes into contact with the first connecting portion 14 and slides in the direction of arrow A by the slide guide portion 57. The swing lever 5l is interlocked with the slide lever 53 and rotates around the support shaft 52.
The slide lever 54 is rotated in the direction of the arrow B, and the slide lever 54 is further slid in the direction of the arrow C by the slide guide portion 56. Then, the connection end 29 of the memory cartridge 20 is connected to the connection end 61 of the first connection part 14,
When the characters and records in the display character section 58 are displayed on the display window 60, the protrusion 59c abuts against the holding hole 59a. As a result, the interlocking of the display section 50 is stopped, and the display of the record is maintained.

In this state, the measurement data of the electric energy measured by the electric power measuring section 10 is stored in the IC memory section 23 of the memory cartridge 20.
is memorized. Then, after a predetermined period of time has elapsed since the memory cartridge 20 was attached and started storing measurement data, the memory cartridge 20 is replaced with another memory cartridge that does not store data. The memory cartridge 20 in which the memory is stored is connected to the power measurement unit 10 installed in large numbers.
A large number of them are gathered at a predetermined place. Here, the display on the memory cartridge 20 is held by the display holding mechanism 59 and has the characters RECORD.

Next, the memory cartridge 20 is attached to the storage section 30 as shown in FIG. The memory cartridge 20 is inserted and attached by fitting the guide groove 43 and the guide protrusion 63 in the same way as when attaching the memory cartridge 20 to the power measuring section 10 . Thereby, the slide lever 54 is moved to the second connecting portion 3
1 and slides in the direction of arrow D by the slide guide portion 56. The swing lever 51 rotates in the direction of arrow E in conjunction with the slide lever 54, and slides in the direction of arrow A in conjunction with the slide lever 53. Then, when the connection end 29 of the memory cartridge 20 is connected to the connection end 61 of the storage section 30 (not shown) and the characters and erasure of the display character section 58 are displayed on the display window 60, the protrusion 59c hits the holding hole 59b. match. As a result, the interlocking of the display section 50 is stopped, and the display of erasure is maintained. In this state, the power amount measurement data stored in the IC memory section 23 is transferred to the magnetic tape storage section 33 of the storage section 30. When the transfer is completed, the measurement data stored in the IC memory section 23 is erased by the control circuit 32 of the storage section 30. After erasing, the memory cartridge 20 is removed from the storage unit 30. Here, the display on the memory cartridge 20 is held by the display holding mechanism 58 in the same way as when it is removed from the power measuring section 10, and the message "erased" is displayed. Furthermore, this memory cartridge 20 is attached to the power measuring section 10 in order to store the next measurement data.

Therefore, the memory cartridge 20 is
Alternatively, when attached to the storage unit 30, the swing lever 51 and slide levers 53, 54 of the display unit 50 work together to display recording or erasing, and the display holding mechanism 59 holds the display. Unlike lamps, LEDs, display tubes, etc., the display does not require a power source, and can provide a stable display over a long period of time, and can provide an economical and highly reliable display. Furthermore, the display can be sufficiently maintained even when the memory cartridge 20 is transported due to vibrations and shocks. moreover,
The guide groove 43 prevents the memory cartridge 20 from being installed in the opposite direction. This prevents incorrect display. Also memory cartridge 20
When attached to the power measurement section 10 or the storage section 30, recording or erasure can be displayed reliably.

In the display character section 58, characters can be written by engraving or the like, and characters for other expressions such as recording and erasing can be written.

Since the display unit 50 is provided in a space inside the case of the memory cartridge 20, it is different from the conventional memory cartridge 2.
This can be provided without increasing the size of the 0 case.

In addition, the first connection section 14 of the power measurement section 10 and the storage section 30
The second connection part 31 has the same shape and is provided in a position that may or may not make contact with the slide lever 53 or the slide lever 54, so various connection parts may be used depending on where the memory cartridge 20 is installed. You can avoid developing it.

Note that the present invention is not limited to the above embodiment. FIGS. 8 and 9 are configuration diagrams showing modified examples of this device. First, FIG. 8 shows a state in which the memory cartridge 20 is attached to the power measuring section 10. The display section 50 of this memory cartridge 20 performs display in an interlocking direction opposite to the interlocking direction shown in FIG. That is, the first connecting portion 14 is provided at a position where it contacts the slide lever 54. Thereby, the operation of the display section 50 is performed as follows. First, the memory cartridge 20 is connected to the power measuring section 10.
By being attached to the slide lever 54, the slide lever 54 is attached to the first
contacts the contact portion l4. As a result, the slide lever 54 slides in the direction of arrow G. The swing lever 51 rotates in the direction of the arrow H in conjunction with the slide lever 54, and the slide lever 53 slides in the direction of the arrow R. As a result, the characters of the record are displayed on the display window 60. Here, in the display character section 58, the characters "Erase" are written on the left side, and the characters "Record" are written on the right side.

Further, when the memory cartridge 20 is attached to the storage section 30, the second connecting section 31 comes into contact with the slide lever 53, contrary to the case when the memory cartridge 20 is attached to the power measuring section 10 described above. Therefore, the display section 50 displays erasing in conjunction with the interlocking directions G, J, and F in the opposite direction.

Therefore, display can be performed even if the slide levers 53 and 54 are slid in the opposite direction to the slide direction of the slide levers 53 and 54 by the display section 50 and the first connecting section 14 shown in FIG. . This also allows stable display over a long period of time, as in the above embodiment.

Next, a modification shown in FIG. 9 will be explained.

The first connection part 14 and the second connection part 31 shown in FIG.
In this example, the portion of the surface that contacts the slide levers 53 and 54 is made to coincide with the tip 14a of the portion where the connecting end 6l is provided, forming a pushing portion 14b. The first and second shown in FIG.
In the case of the connecting portions 14 and 31, the holding holes 59a and 59b of the display holding mechanism 59 may be determined by the distance of sliding movement of the slide levers 53 and 54. Also display window 6
Similarly, the 0 position may be determined based on the distance of slide movement of the slide levers 53 and 54. Further, when the push portion 14b is extended from the tip 14a, the push portion 14b becomes a guide portion when the memory cartridge 20 is attached. Furthermore, if an opening/closing door (not shown) is provided on the front surface of the connection end 25 of the memory cartridge 20 to prevent contact with the connection conductor through which signals of measured data and stored data from the IC memory section 23 flow, the push part 14b is pushed closer to the tip 14a. Provided without protruding.

As a result, even in the first and second connecting portions 14 and 31 formed as shown in FIG. 9, the display section 50 is linked to record and display data, similarly to the above-mentioned embodiment and the modified example shown in FIG. Display the deletion.

Therefore, the first and second connecting portions 14 shown in FIG.
, 31, the operation of the display section 50 is not deteriorated and the display can be performed in the same manner as in the above embodiment.

〔Effect of the invention〕

According to the present invention, when the memory cartridge is attached to the power measuring section or the storage section, the display section provided in the memory cartridge is linked to indicate recording and erasing, and this display is retained by the display holding mechanism. ,
It is easy to determine whether measurement data is stored in the memory cartridge or whether the memory has been erased.
Furthermore, it is possible to provide a memory cartridge display device that can maintain a display for a long period of time, is not structurally large, and does not consume the internal battery.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram of a load power measuring device, FIGS. 2 and 3 are configuration diagrams of a conventional device for determining storage and erasure in a memory cartridge, and FIG. 4 is an external appearance of a memory cartridge according to the present invention. 5 is a sectional view of the display device of the present memory cartridge, FIGS. 6 and 7 are configuration diagrams of the display device of the memory cartridge according to the present invention, and FIGS. 8 and 9 are modified examples of the present device. FIG. 10... Power measurement section, 14... First connection section, 20
...Memory cartridge, 22...Interface section, 23...IC memory section, 24...DC power supply, 2
9... Connection end of memory cartridge, 30... Storage section, 31... Second connection section, 40, 41... Upper case and lower case, 43... Guide groove, 50... Display section, 51... Swing lever, 52... Support shaft, 53,
54...Slide lever, 55...Pin, 56,5
7...Slide guide section, 58...Display character section, 59
. . . Display holding mechanism, 60 . . . Display window, 61 . . . Connection end of first connection portion, 62, 63 .

Claims (1)

[Claims] Measuring data from the power measuring section is stored in the memory cartridge with a memory cartridge attached to a power measuring section that measures electric energy, and the memory cartridge is removed from the power measuring section and attached to another storage section. In the electric energy measuring device that transfers the stored measurement data and measures the electric energy, a connecting portion of the electric power measuring section is detachably connected to the memory cartridge, and a connecting portion is detachably connected to the memory cartridge. A guide groove part for setting the mounting direction when connecting the connecting part of the storage part and the connecting part of the power measuring part or the connecting part of the storage part, and a display window for displaying storage or deletion of the measurement data. a case of the memory cartridge provided therein; and a slide lever that is attached to both ends of a swing lever rotatably provided in the case of the memory cartridge and interlocks with the swing lever, and either one of the slide levers is provided. a display section that displays the storage or erasure indication of the memory cartridge in the display window when the memory cartridge is attached to the connection section of the power measurement section or the connection section of the storage section; and a display section that is held on the slide lever. The case of the memory cartridge has a protrusion that abuts the holding hole, and when the memory cartridge is attached to the power measurement section or the storage section, the holding hole and the protrusion A display device for a memory cartridge, comprising: a display holding mechanism that holds the display state of the display section of the memory cartridge by colliding with the display section of the memory cartridge.