CN2165432Y - Digital counting wireless transmission type receiving display for weighing ergograph - Google Patents
Digital counting wireless transmission type receiving display for weighing ergograph Download PDFInfo
- Publication number
- CN2165432Y CN2165432Y CN 93220198 CN93220198U CN2165432Y CN 2165432 Y CN2165432 Y CN 2165432Y CN 93220198 CN93220198 CN 93220198 CN 93220198 U CN93220198 U CN 93220198U CN 2165432 Y CN2165432 Y CN 2165432Y
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- signal
- weighing
- digital
- receiving
- transmission type
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Abstract
The utility model relates to a digital wireless signal transmitting weighing apparatus which is composed of a set of digital weighing measuring force and transmitting apparatus and the other set of receiving and display devices. The utility model inducts the weight by a weighing force cell; whereafter, the signal is amplified by an amplifier; then, after filtrated by filters, the signal is converted to digital signal by an analogue-to-digital converter and sent through the transmitting apparatus. The other set of receiving apparatus receives the wireless signal which is reduced to digital signal by decoding and directly displayed as number value after dealt by a micro-computer. The signal can also be dealt by a central control computer through a serial interface, which leads to utilize electronic weighing at the situation without conductor wire transmission signal.
Description
The utility model relates to a kind of digital electronic device for measuring force of weighing, refer in particular to a kind ofly be difficult for adopting wired mode to transmit wireless transmission type that the signal occasion the uses device for measuring force of weighing, it can so that weigh that the gained data are easy to read, observation and record.
Because being showing improvement or progress day by day of science and technology, the weighing apparatus usable range of weighing more and more widely.Again in order to read, make things convenient for record easily, weighing device gradually with digital display for controlling the trend.Current digital weighing device is not outer in dual mode: a kind of is weight sensing apparatus and the display device person of being integrated, as electronic scale common on the open market.Another kind is that weight sensing apparatus and display device are separated into two parts and rely on cable to transmit necessary signals, as various large and small weighbridges.Yet in some occasion, these two kinds of weighing devices are very not suitable.The title that hangs that for example cooperates the driving use, because of it must hang on the suspension hook of driving, and with the suspension hook oscilaltion, the weight display part just is difficult to be connected with weighing device with electric wire like this, so, this title that hangs mostly is integral type at present, and promptly the weight sensing is integrated with demonstration two parts, and by the battery supply power.Because the charge capacity of battery is limited, so, for the long working time can be arranged, and also can see clearly Chu at a distance, generally all adopt large-scale liquid crystal (L.C.D.) to show its numerical value.But the visible angle of liquid crystal is less, can not especially must write down, read the value of weighing by the people in dark place reading numerical values again, can not directly be connected with management system or control system, and its practicality is had a greatly reduced quality.
The purpose of this utility model provides a kind of novel device for measuring force of weighing----digital radio transmission type that can overcome above-mentioned defective ergographic receiving and displaying device of weighing.
The utility model is by sensing conveyer and the receiving and displaying device digital radio transmission dimerous type ergographic reception display part of weighing, wherein the sensing conveyer mainly be the amplifier that amplified by the weight sensing element that can export the high low signal of corresponding weight after stressed, with above-mentioned signal, the unnecessary signal of filtering wave filter, this conversion of signals is become the analog to digital converter of digital signal, above-mentioned digital signal is weaved into serial sequence and insert the scrambler of identification code and the radio transmitter that this coded signal is launched constituted; Receiving and displaying device by the receiver that receives above-mentioned coded signal, with signal be reduced into digital signal demoder and this digital signal handle, the microcomputer of digital-to-analog conversion and demonstration forms.The coded digital signal of sensing conveyer is sent to receiving and displaying device in the radiowave mode.
The utility model has the advantages that:, can omit the puzzlement of backguy because the weight sensing of separating transmits signal with receiving demonstration two parts in the radiowave mode.The transmission of digital signal, processing accuracy height, antijamming capability is strong, is not subjected to the influence of sensing apparatus; And the signal to sensitivity amplifies, the very close sensor of filtering and analog-to-digital place, and the transmission distortion that can not produce signal is so whole device can have very high measurement accuracy.The utility model has inserted identification code to signal encoding the time, good in anti-interference performance.The Integrated weighing processing unit that can adopt several sensing conveyers to share a group of received display device and form.Be connected because receiving and displaying device can directly be controlled (management) computing machine by the communication interface of microcomputer with central authorities, realize the full automation of weighing.
Specifically introduce design feature of the present utility model below in conjunction with drawings and Examples.
Fig. 1 is a single unit system synoptic diagram of the present utility model.
Fig. 2 is the block scheme of the utility model receiving and displaying device.
Fig. 3 is the utility model radio receiver electrical schematic diagram.
Fig. 4 is the electrical schematic diagram of the utility model receiving and displaying device.
Fig. 5 is wave filter reference circuit figure of the present utility model.
Fig. 6 is the waveform synoptic diagram of string type coding of the present utility model, transmission.
Referring to Fig. 1, the weigh maximum characteristics of instrument of digital radio transmission type are to be divided into sensing conveyer A and receiving and displaying device B two parts, and these two parts separate fully, and the signal transmission between them transmits reception by the digital signal wireless communication pattern.The utility model relates to receiving and displaying device B.
Consult Fig. 2, the block diagram of the utility model----receiving and displaying device B constitutes: after receiving the serial digital radiowave that contains identification signal and weight signal that radio transmitters 6 are launched by receiver 7, by demoder 8 its decoding is reduced into the parallel microcomputer 9 of sending into of parallel digital signal of original expression weight again, after being carried out data processing, converted to actual weight by computing machine 9, the display device 10 of sending into output device by computing machine directly demonstrates weight numerical value again.Also can control (management) computing machine by its serial line interface with central authorities by microcomputer 9 is connected.
Fig. 3, Fig. 4 have showed the associated electrical schematic diagram of the utility model embodiment respectively.
Fig. 5 A is the reference circuit of passive type wave filter.
Fig. 5 B is the reference circuit of active filter.
The utility model serial code waveform synoptic diagram shown in Figure 6, oscillator is a clock signal among the figure, and Tc is the clock period, and output is the waveform of scrambler output.Wherein the 1st～3 (bit0～bit2) signal is an identification code, can set it as required, and the 4th～8 signal is the digital signal of number-Mo conversion, and the 9th～12 signal is standby reference.
Claims (3)
1, the wireless transmission type of a kind of digital control type device for measuring force of weighing, form by sensing conveyer and receiving and displaying device two parts, it is characterized in that receiving and displaying device wherein by the receiver that receives above-mentioned coded signal, with signal be reduced into digital signal demoder and this digital signal handle, the microcomputer of digital-to-analog conversion and demonstration forms.
2, the digital radio transmission type as claimed in claim 1 device for measuring force of weighing, it is characterized in that: the microcomputer in the receiving and displaying device can be connected with central control computer by its serial line interface.
3, the digital radio transmission type as claimed in claim 1 device for measuring force of weighing is characterized in that: a receiving and displaying device can receive the wireless signal of two or more sensing conveyers emissions, handles respectively and shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93220198 CN2165432Y (en) | 1993-08-14 | 1993-08-14 | Digital counting wireless transmission type receiving display for weighing ergograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93220198 CN2165432Y (en) | 1993-08-14 | 1993-08-14 | Digital counting wireless transmission type receiving display for weighing ergograph |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93207274 Division CN2208225Y (en) | 1993-03-27 | 1993-03-27 | Digital wireless signal transmitting weighing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2165432Y true CN2165432Y (en) | 1994-05-18 |
Family
ID=33799413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93220198 Expired - Fee Related CN2165432Y (en) | 1993-08-14 | 1993-08-14 | Digital counting wireless transmission type receiving display for weighing ergograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2165432Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297804C (en) * | 2001-03-29 | 2007-01-31 | 梅特勒-托利多公开股份有限公司 | Scales with cables storage |
| CN104501920A (en) * | 2014-12-16 | 2015-04-08 | 承德市中瑞自动化工程有限公司 | Digital weighing instrument |
| CN106461453A (en) * | 2014-02-21 | 2017-02-22 | 曼朵计量公司 | A foldable scale |
-
1993
- 1993-08-14 CN CN 93220198 patent/CN2165432Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297804C (en) * | 2001-03-29 | 2007-01-31 | 梅特勒-托利多公开股份有限公司 | Scales with cables storage |
| CN106461453A (en) * | 2014-02-21 | 2017-02-22 | 曼朵计量公司 | A foldable scale |
| CN104501920A (en) * | 2014-12-16 | 2015-04-08 | 承德市中瑞自动化工程有限公司 | Digital weighing instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |