DE8902338U1 - Data storage device - Google Patents

Description

The invention relates to a measurement value storage device for counting, evaluating and recording quantity-proportional measuring pulses from a wide variety of meters, in particular electricity meters.

Measuring instruments are known in which values corresponding to certain measuring cycles are printed on a measuring strip.
This means that automatic evaluation of data is not possible. As an alternative to such measuring strips, measurement data is written to electronic data carriers such as magnetic tape. The latter has the disadvantage that the drives work mechanically and thus require a high level of maintenance, as these drives are very susceptible to failure.

All of these known measuring devices have the disadvantage that the emergency power supply is ensured by a battery.

These are also subject to a high level of maintenance. Furthermore, these devices are housed in relatively large housings. With none of these known devices is it possible to carry out installation preparation in the workshop, so that the device can be installed ready for use by non-specialist personnel. The storage capacity of the known devices with data recording is a maximum of four weeks.

The present invention is therefore based on the object of creating a measurement data storage device with which it is possible to accommodate the components used in a compact and extremely small housing and to record the data using a read-only memory, such as

- 12 &iacgr;-

2.B. EE-PROMS or non-volatile memory elements. This has the advantage that no mechanical equipment needs to be used, which means that the devices are completely maintenance - free.

E Furthermore, the use of a mains capacitor

H ensures emergency power supply for up to 60 hours

h and a complete calendar clock time

&psgr; maintained, whereby the not yet in the

V Memory card recorded data (intermediate values) at

Power outage lasting more than 60 hours.

Furthermore, the inventive

Measurement data storage device possible, using a keyboard

' outside the installation location (in the workshop) of this

to be prepared ready for use so that no specialist personnel is required for installation.

Furthermore, the object of the invention is to enable the changing of memory cards in such a way that here too, no specialist personnel is required, since changing the memory card triggers program routines. Thus, when the new memory card is inserted, a switching process is triggered in order to recognize the new memory card and when the memory card is removed, a final routine is triggered in the program without any further manual operations being required.

These objects are achieved according to the features of claim 1.

·· t · &igr; I

* * · A ■ &iacgr;&idigr;;

• ·· · . I - JlI-I ₁₁ , . , ,,

Further features of the invention are characterized in claims 2 to 5.

The invention will now be explained in more detail with reference to the accompanying drawings, each of which shows particular embodiments.
Daboi show:

Figure 1 is a perspective exploded view of the individual parts of the measurement data storage device 1;

Figure 2 the power supply module 3;
Figure 3 the central board 4;

Figure 4

Motherboard 7;

Figure 5 the interface card 5;

Figure 6 the infrared interface 6;

Figure 7 the housing cover

Figure 8 is a perspective view of the keyboard 8;

Figure 9 the back panel of the keyboard 8;

Fig. 10 the seal

Figure 11 Back of the seal

Figure 12 shows the card slot 36 with memory card and mainboard.

Figure 1 shows a perspective exploded view of the measured value storage device 1 according to the invention.

This consists of a network sub-module 3 encapsulated in a housing 2, a central board 4, a base board 7 and an interchangeable interface card 5 or infrared interface 6. Furthermore of a magnetically connectable keyboard 8. The housing has a plug-in base (not visible here) which functions for wall mounting, installation on a wall or for direct fastening on the terminal block of, for example, electricity meters in accordance with DIN 43 857.

A special feature of the invention is that the card slot 36 is accessible when the housing 2 is closed. The memory card 29 can thus be changed without opening the device 1. Using the mains switch 14, the supply voltage can be switched from 220 volts/50 Hz to 100 volts/50 Hz.

The mains input is protected against EMC influences. The secondary side has a 5-volt direct current or 7 volts for the keyboard 6. The emergency power supply is provided by means of a capacitor (3, 3F). A SAB 8OC 535 is used as the microcomputer 17. A buffered 'C-MOS-RAM is used for data backup in the event of a power failure. A plug-in E-Prom 18 with microprogram is also provided for a wide variety of applications. The interfaces are either a plug-in opto interface (300 BAUD) as an infrared interface 6 or an interface card 5 (RS 232) (300 BAUD).

The following figures 2 to 6 show the power supply module, the central board, the motherboard and the interface card as well as the infrared interface, although the circuits are no longer physically described for me alone.

Figure 2 shows the power supply module 3. The individual parts are assigned to one another in terms of circuitry on a circuit board 50. The plug connections 9 and 10 to the inatlation side and the plug connection 11 to the microcomputer unit can be seen. The transformer is identified with the reference number 12 (2 x 110 V, 50 - 60 Hz, 0.125 A).

The reference number 13 indicates elements for pulse input coupling and the reference number 15 indicates elements for the 5-volt power supply. The mains switch 14 enables the setting from 220 volts to 100 volts. The module 16 and its elements 16a to 16d ensure interference suppression.

Figure 3 shows the central board 4. The CPU is a microcomputer 17 (SAB 80 C 535), a buffered C-MOS-RAM 19 for data backup in the event of a power failure and a plug-in E-Prom 18 with microprogram for a wide variety of applications.

The annual calendar clock is identified by reference number 20. In addition to the peripheral components 24, the plug connections db to 28 are visible, whereby the plug connection 25 is available for the interface, the

Connectors 26 and 27 for the LCD display and connector 28 for the memory card and motherboard are available.

The query key 2"J, the reset button 22 and the power supply 23 for the keyboard 8 are preferably provided in a housing slot 53 (see Figure 1).

Figure 4 shows UIU urUriupxauxne ( . &pgr; j. &ugr; UCiIi

The capacitor is identified by reference numeral 31 and the other elements for the emergency power supply are identified by reference numeral 31a.

The symbol 32 indicates the components for the 5-volt

The connector 33 leads to the

Power supply module and the connector 3 ¹ * zui" central board.

The components 30 are responsible for switching the data bus for the memory card on and off. The plug connection 35 is used to mount the memory card 29 with the associated card slot 36. The Hall probe 37 can also be seen, which will be discussed in more detail later in the description of Figure 12.

Figure 5 shows the interface card 5 and figure 6 shows the infrared interface 6.

Figure 7 shows the housing cover 40. A special feature of the invention is that all operating and assembly processes are accessible from outside the device.

The housing cover 40 thus has corresponding windows 41, 42 for viewing the LCD display. Depending on how the device is mounted, the LCD display can be installed offset. The window 43 is used to mount the memory card 29. A window 44 is provided in this housing cover 40 coaxial with the query 2"> and reset button 22 and the power supply 23 for the keyboard 8 on the central board 4. This window merges into a preferably circular magnet receiving slot 45, so that a uniform bulge is formed here to accommodate the seal 46.

After removing the seal 46, the keyboard 8 can be held in place using a magnetic holder. For this purpose, a magnet 49 is arranged coaxially to one another in the housing cover 40 and in the keyboard 8.

Figure 8 shows a perspective view of the keyboard 8. It has a keypad 54 and optical displays 55. The keyboard is connected to the device 1 using the plug connection 56.

Figure 9 shows the back of the keyboard 8, where the opto interface 48 with the ring magnet attachment 49 can be seen.

Figure 10 shows the seal 46 in a perspective view and Figure 11 shows a rear view of the seal 46.

The web 57 covers the window 44 of the housing cover 40 and from here continues into a recess 58. A vertically upstanding sleeve 59 for receiving a sealing pin is arranged in the recess 58.

The recess 58, which has a U-shaped cross section, is followed by a circular cover 60 which extends over the magnet receiving slot 45 of the housing cover 40.

The material weakenings 47 allow certain parts of the seal to be broken off.

Figure 12 shows a perspective exploded view of the card slot 36 of the memory card 29 and a section of the motherboard 7.

The plug connection ?8 for the memory card 29 can be seen on the motherboard 7. The card slot 36 is mounted on the motherboard 7 using screws not shown here. The card slot 36 has a pivot lever 61 which is mounted on the card slot 36 so that it can rotate on the axis 62.

This pivot lever 61 has a split tab 63. A magnet 39 is embedded in the pivot lever 61 on the front side. When the memory card is installed, the screw 38 acts on the pivot lever 61, which moves it vertically downwards in direction A due to its spring-acting property when the screw 38 is screwed into the threaded block 64 arranged on the housing 36. During this downward movement, the magnet 39 passes the Hall probe 37. This occurs in the opposite way when the memory card is removed. With each changeover process, a start or end routine is called up in the program.

• ·· * I Il &Lgr; * Il J

·· ti» &igr;&igr; »a &igr; lsi ······ · » s

•re··· ■■ in it &igr;·

The present invention creates a measurement value storage device that enables the counting, evaluation and recording of quantity-proportional measurement pulses from a wide variety of meters, whereby this is in a very compact design and is housed in an extremely small housing. The data is recorded using read-only memory, such as EE-PROMS or non-volatile memory elements, with the advantage that no mechanical components are used. This means that the device is completely maintenance-free. By using an emergency power capacitor, the entire function is maintained for up to 60 hours in the event of a power failure, whereby the data not yet recorded on the memory card is retained.

The design of the card slot for an externally pluggable memory card with a Hall probe magnetic switch, which triggers a program routine when the plug-in card is inserted and removed, allows this device to be operated without any special technical knowledge.

A further advantage is that the device can be prepared ready for use in the workshop outside of the installation site, so that no specialist personnel is required for installation. This is ensured in particular by the emergency power capacitor. Without additional evaluation software, the invention makes it possible to show the user the total values in kWh and the highest KW value with the date and time within a recording period via the LCD display.

_ 10 -

·· a i •&igr;·

If an evaluation of the individual recorded values (e.g. every 15 minutes) is also required, the recorded data on the memory card must be processed using an IrC with the appropriate software. This is followed by master data management, handling of the memory card, evaluations and calculations, presentation of 12-cycle diagrams, daily diagrams, monthly diagrams and annual diagrams. All data, lists, calculated values and diagrams can be optionally displayed on the screen and/or printed out or plotted.

The practical use of the measurement data storage device, e.g. in the area of electricity supply, is carried out by preparing the memory card. The memory card is prepared or written with customer-specific parameters using a PC and an adapter as well as the associated software. These are e.g. B. Customer number or device number (12 digits), the daily recording time from hour to hour, the maximum KW specification (for maximum monitoring 1 to 65,000 KW), the multiplication factor (current-voltage converter ratio 1 to 800,000), the pulses/watt hours (= pulse value 1 to 65,000 pulses/ 0.000001 to 65,000 Wh), the maximum pulses/registration period (250 or 65 OuO), the registration period in minutes (2, 3, 6, 10, 12, 15, 20, 30, 60 minutes) and the summer/winter changeover times for two years.

4 4 *····· ·»■-..* SS SS ^r ₁

For the purposes of this example, there are four ;■ capacity sizes of a memory card to choose from. The storage capacity also determines the time until a |· card change is necessary. This capacity calculation is | dependent on the factors of the recording period (minutes), maximum pulses/recording period and daily recording duration. A calculation is therefore carried out individually.

After the measurement storage device according to the invention is mounted on the base, the terminals for the phase (220 volts or 100 volts), center conductor (220 volts or 100 volts), earth conductor (increased noise immunity), measuring period trigger lines,

Pulse input power and alternatively additional terminals for the RS 232 installed.

Commissioning is carried out by switching on the supply voltage, whereby the measurement data storage device goes into "restart" mode. Using the attached keyboard, in accordance with the operator guidance (LCD), only the start date and time are entered, if this has not already been done in the workshop. After this, the measurement data storage device has started its function and begins to record data.

The data is permanently displayed on the LCD display. This includes the current time and the current total. When you press the call button, the following values are also displayed: customer or device number;

maximum pulses/recording period, recording period (ζ. e.g. 15 minutes), pulse value, recording time (from hour to hour), multiplication factor, maximum KW value (monitoring) up to 32 power failure time data, start of recording (date + time), summer/winter changeover times and the highest KW value to date with date + time.

Using the keyboard, it is possible to change the multi-factor and maximum value (load) parameters at any time. It is also possible to initiate a restart at any time without changing the capacitor (reset).

The card must be changed in good time, i.e. before the storage capacity is exhausted. It is important to ensure that the correct memory card with the correct legend data is used. A card can be changed at any time. It is only important to ensure that this process is completed within two recording periods. No data is lost and the measurement data storage device continues to work immediately with the new "start date + time".

The term "C-MOS-RAM" means: computer component.

Reference number list

1 measurement storage device

2 housings

3 Power supply module

4 Central board

5 Interface card

6 Opto interface

7 Motherboard

8 Keyboard

9 Plug connection Inst.

10 Plug connection Inst.

11 Connector Microcomp.

12 Transformer

13 pulse coupling elements

14 network switches

15 elements for 5 volt power supply

16 suppression elements

17 Micro-Computer

18 E-Prom

19 C-MOS RAM

20 year calendar clock

21 Query button

22 Reset button

23 Power supply for

24 Peripheral components

25 Plug connection for cuts

26 Connector for LCD

27 Connector for LCD

28. Memory card connector

29 Memory card

30 building blocks for data bus

31 Emergency power supply elements capacitor

32 components for 5 volt voltage

33 Connector for power module

34 Connector for central board

35 Plug connection

36 cartridge slot

37 Neck probe

38 Screw perpendicular to the neck

39 Magnet

40 Housing cover

41 Window for LCD

42 windows for LCD

43 Memory card window

44 windows for buttons

61 Magnetic receiving slot

46 Pl' mbe

47 Material weakening

48 Optical interface

49 Magnet

50 Power supply module board

53 Housing slot

54 Keypad

55 Optical displays

56 Keyboard connector

57 Pier by Plombe

58 Deepening

59 Sleeve

60 Cover

61 Swivel lever

62 Axis of swivel lever

63 tab

64 Threaded block

Claims (9)

Expectations Measured value storage device for counting, evaluating and recording quantity-proportional measuring pulses from a wide variety of _meters , in particular electricity meters, characterized, that the measured value storage device (1) consists of a housing (2) encapsulated power supply module (3), a central board (4), an exchangeably arranged interface card (5) or infrared interface (6), a motherboard (7) and a keyboard (8) that can be magnetically coupled to the housing (2), which are spatially related to one another by means of plug connections, wherein the power supply module (3) plug connections (9, 10, 11) to the installation side and microcomputer unit as well as a transformer (12), pulse input element (13), a mains switch (14), elements (15) for the 5-volt power supply and corresponding interference suppression units (16), the central board (4) has a microcomputer (17), a pluggable E-Prom (18) with computer program, a C-MOS-RAM (19) for data recording within a power failure routine, an annual calendar clock (20), an off (21) and reset button (22), a power supply (23) for the keyboard (8) as well as peripheral components (24) and plug connections (25, 26, 27, 28) for a memory card (29), interface and LCD display and the base board (7), components (30) for switching the data bus on and off for the Memory card (29), components (3D) for the emergency power supply, components (32) for the 5-volt power supply, a plug connection (33) to the power module, a plug connection (34) to the central board and a plug connection (35) with a mechanical card slot (36) as well as a neck probe (37), wherein a magnet (39) which can be moved perpendicularly to the neck probe by means of a screw (38) is arranged within the card slot (36). 2. Measurement storage device according to claim 1,
characterized, that the housing (2) has a housing cover (40) which can be removed by means of a screw connection and which provides corresponding windows (41, 42) offset by 90° for viewing the LCD display, a window (43) for mounting the memory card (29) and a window (44) arranged coaxially to the query (21), reset buttons (22) and the power supply (23) on the central board (4) and a magnetic slot (45) for accommodating the keyboard (8). 3. Measurement storage device according to claim 1-2,
characterized, that the magnet receiving slot (45) is connected to the window (44) in such a way that a variably designed seal (46) is arranged here in a removable manner. 4. Measurement storage device according to claims 1-3,
characterized, that the seal (46) for the purpose of permanent AT- » &igr; * &igr;&igr; i I · ■ • · · · ·· (. * CJlI Il &igr;« Accessibility to certain parts of the device independent of the other sealings Material weaknesses (47) for removing parts of the seal. 5. Measurement storage device according to claims 1-4,
characterized" that an optical interface (48) with ring magnet fastening (49) is arranged in the rear wall of the keyboard (8). 6. Measurement storage device according to claims 1-5,
characterized, that the card slot (36) has a pivot lever (61) rotatably mounted on an axis (62). 7. Measurement storage device according to claim 1 and 6,
characterized, that the swivel lever (61) has a split tab (63). 8. Measurement storage device according to claim 1 and 6, 7,
characterized, that the pivot lever (61) has a magnet (39) on its front side. 9. Measurement storage device according to claim 1,6 to 8,
characterized, that the card slot (36) has a threaded block for receiving a vertically guided screw (38) (64) which is arranged in the card slot (36) such that it is located at the opposite end of the axis (62) above the pivot lever (61).