CN110926586A - Wireless distributed electronic scale - Google Patents
Wireless distributed electronic scale Download PDFInfo
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- CN110926586A CN110926586A CN201910797743.9A CN201910797743A CN110926586A CN 110926586 A CN110926586 A CN 110926586A CN 201910797743 A CN201910797743 A CN 201910797743A CN 110926586 A CN110926586 A CN 110926586A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
- G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
- G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
- G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a wireless distributed electronic scale, which is characterized in that the electronic scale comprises: a main control module and a plurality of sub-modules. The main module comprises a main control unit, an enhanced wireless transmission unit, an AD conversion unit, a sensor unit and a power supply unit; the sub-module comprises an auxiliary control unit, a wireless transmission unit, an AD conversion unit, a sensor unit and a power supply unit. The enhanced wireless transmission unit of the main module supports a Bluetooth low-power consumption and ZigBee dual-mode or Bluetooth low-power consumption single-mode wireless transmission mode, and the wireless transmission unit of the sub-module supports a Bluetooth low-power consumption or ZigBee wireless transmission mode. The main module can independently provide the weight metering information to the outside through a Bluetooth low-power transmission mode, and can be used together with any number of sub-modules below 8 to provide the weight metering information. The electronic scale adopts the mode of internal wireless transmission and distributed combination of multiple sensor units, and has the advantages of accurate weighing, flexible application, convenient storage and the like.
Description
Technical Field
The invention relates to the field of weight measurement, in particular to a wireless distributed electronic scale with a plurality of weight sensors separated in space.
Background
With the increasing living standard, the electronic scale is an important branch in the weighing apparatus, has gone into every family, is received by the masses, and becomes one of the stock articles in the family.
The traditional electronic scale consists of a bearing unit, a force transmission conversion unit and a value indicating unit. The load-bearing unit is responsible for bearing the weight, passes power conversion unit and is responsible for converting the gravity signal into the signal of telecommunication, and the indicating value unit is then responsible for showing the quality of weight. In terms of form, common electronic scales in homes are of the tablet type and of the portable type. Tablet-type electronic scales generally have a better use experience, but have the disadvantage of being inconvenient to carry. Portable electronic scales have a high portability but the user experience is not ideal for weighing particularly heavy items. Aiming at the traveling requirements of some users, it is particularly necessary to develop a portable and user-friendly electronic scale.
Disclosure of Invention
The technical problem of the invention is solved: aiming at the defects of the prior art, the wireless distributed electronic scale is provided, wireless connection among sensors in the electronic scale is realized, the usability of equipment is guaranteed, and the portability of the equipment is also guaranteed. The specific technical scheme is as follows:
in order to achieve the above object, the present invention provides a wireless distributed electronic scale, the system comprising:
(1) the main module comprises a main control unit, an enhanced wireless transmission unit, an AD conversion unit, a sensor unit and a power supply unit;
(2) the sub-module comprises an auxiliary control unit, a wireless transmission unit, an AD conversion unit, a sensor unit and a power supply unit;
the wireless distributed electronic scale can be composed of sub-modules with the number not exceeding 8 and a main module, and can also only comprise the main module.
The main control unit is responsible for generating and processing the data and the instructions of the whole electronic scale; the enhanced wireless transmission unit is responsible for the interaction of data and instructions among the modules and between the electronic scale and external equipment; the auxiliary control module is responsible for forwarding of the sub-module data and responding to the instruction; the wireless transmission unit is responsible for data and instruction interaction between the sub-module and the main module; the AD conversion unit is used for converting the analog signal of the sensor into a digital signal; the sensor unit is responsible for converting the gravity signal into an analog signal; the power supply unit is responsible for providing power supply for other units.
The enhanced wireless transmission unit of the main module is a dual-mode transmission unit or a Bluetooth single-mode transmission unit. The dual-mode transmission unit is characterized in that the transmission unit simultaneously supports two wireless transmission modes of Bluetooth low power consumption and ZigBee and can simultaneously work in the two wireless transmission modes of Bluetooth low power consumption and ZigBee, and the Bluetooth single-mode transmission unit only supports one transmission mode of Bluetooth low power consumption and only works in the Bluetooth low power consumption transmission mode. The enhanced wireless transmission unit of the main module does not support the operation in the ZigBee mode independently.
The wireless transmission unit of the sub-module is a single-mode transmission unit and supports a Bluetooth low-power consumption or ZigBee wireless transmission mode; when the enhanced wireless transmission module of the main module is a dual-mode transmission unit, the wireless transmission unit of the sub-module is a ZigBee single-mode transmission unit or a Bluetooth single-mode transmission unit, that is, the wireless transmission unit of the sub-module only supports one transmission mode of Zigbee or Bluetooth low power consumption; when the enhanced wireless transmission module of the main module is a bluetooth single-mode transmission unit, the wireless transmission unit of the sub-module is a bluetooth single-mode transmission unit, that is, only the bluetooth low-power transmission mode is supported.
The data communication between the main module and the sub-modules is completed through the enhanced wireless transmission unit of the main module and the wireless transmission unit of the sub-modules; when the enhanced wireless transmission unit of the main module is a dual-mode transmission unit, the data communication between the main module and the sub-modules can adopt a Bluetooth low-power consumption transmission mode or a ZigBee mode; when the enhanced wireless transmission unit of the main module is a single-mode transmission unit, the data communication between the main module and the sub-modules adopts a Bluetooth low-power transmission mode.
The main module can independently complete the weight metering process and independently provide weight information to the outside through the enhanced wireless transmission module; the main module can be matched with any number of sub-modules below 8 to jointly complete the weight metering process, and weight information is independently provided to the outside through the enhanced wireless transmission module. The sub-modules of the wireless distributed electronic scale cannot independently complete the weight metering process.
The weight metering process of the wireless distributed electronic scale comprises the following steps:
a1, supplying power to the main module power supply unit and the sub module power supply unit;
a2, constructing a wireless weighing topological structure by the main control unit of the main module by using a distributed topological structure generation mechanism;
a3, a main control unit of the main module, an AD conversion unit and a sensor unit acquire weight information of the main module, and a sub-module auxiliary control unit, the AD conversion unit and the sensor unit acquire weight information of the sub-module;
a4, the main control unit of the main module acquires and accumulates the weight metering information of all modules;
a5, the main module main control unit externally issues the weight metering information of the current electronic scale, and the weight metering process is completed.
Further, the flow of the distributed topology generation mechanism described in a2 is:
s1, scanning nearby wireless signals by the enhanced wireless transmission unit of the main module under the control of the main control unit;
when the enhanced wireless transmission unit is a dual-mode transmission unit, preferentially scanning nearby ZigBee signals, if the ZigBee broadcast signals specific to the sub-modules are not scanned, continuously scanning the Bluetooth low-power-consumption broadcast signals specific to the nearby sub-modules;
when the enhanced wireless transmission unit is a single-mode transmission unit, directly scanning a specific Bluetooth low-power-consumption broadcast signal of a nearby sub-module;
s2, when the enhanced wireless sensor does not scan the broadcast signal of any sub-module within a specific time window length T, the main control unit judges that only the main module exists in the current electronic scale and the main module works in an independent mode;
if the enhanced wireless sensor scans broadcast signals (N is less than or equal to 8) of N sub-modules within a specific time window length T, judging that the sub-modules exist in the current electronic scale, and enabling the main module to enter a cooperative working mode;
under an independent working mode, the electronic scale is a single-node weighing topological structure; under the cooperative working mode, the electronic scale is a star-shaped weighing topological structure taking the main module as the center and the sub-modules as nodes;
the time window length T may be set to any value from 5 seconds to 30 seconds;
and S3, recording topology information by the main control unit of the main module, and finishing the establishment of the weighing topology framework.
The beneficial effects obtained by adopting the invention are as follows: the sensors of the electronic scale can use wireless transmission, so that higher flexibility is provided for the appearance design of the electronic scale; in addition, the main module and the sub-modules are combined flexibly, so that the use experience of a user is greatly improved.
Drawings
FIG. 1 is a block diagram of an electronic scale according to the present invention;
FIG. 2 is a schematic view of the gravimetric metering process of the present invention;
FIG. 3 is a schematic flow chart of a distributed topology architecture generation mechanism of the present invention;
fig. 4 is a schematic diagram of an embodiment of the present invention using bluetooth single mode transmission;
fig. 5 is a schematic diagram of an embodiment of the present invention using dual mode transmission.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the present invention provides a wireless distributed electronic scale, which comprises the following two parts:
(1) main Module C01
(2) Submodule C02
The main module comprises a main control unit, an enhanced wireless transmission unit, an AD conversion unit, a sensor unit and a power supply unit; the sub-module comprises an auxiliary control unit, a wireless transmission unit, an AD conversion unit, a sensor unit and a power supply unit.
The main control unit is responsible for generating and processing the data and the instructions of the whole electronic scale; the enhanced wireless transmission unit is responsible for the interaction of data and instructions among the modules and between the electronic scale and external equipment; the auxiliary control module is responsible for forwarding of the sub-module data and responding to the instruction; the wireless transmission unit is responsible for data and instruction interaction between the sub-module and the main module; the AD conversion unit is used for converting the analog signal of the sensor into a digital signal; the sensor unit is responsible for converting the gravity signal into an analog signal; the power supply unit is responsible for providing power supply for other units.
The enhanced wireless transmission unit of the main module is a dual-mode transmission unit or a Bluetooth single-mode transmission unit. The dual-mode transmission unit is characterized in that the transmission unit simultaneously supports two wireless transmission modes of Bluetooth low power consumption and ZigBee and can simultaneously work in the two wireless transmission modes of Bluetooth low power consumption and ZigBee, and the Bluetooth single-mode transmission unit only supports one transmission mode of Bluetooth low power consumption and only works in the Bluetooth low power consumption transmission mode. The enhanced wireless transmission unit does not support the operation in the ZigBee mode alone.
The wireless transmission unit of the sub-module is a single-mode transmission unit and supports a Bluetooth low-power consumption or ZigBee wireless transmission mode; when the enhanced wireless transmission module of the main module is a dual-mode transmission unit, the wireless transmission unit of the sub-module can be a ZigBee single-mode transmission unit or a bluetooth single-mode transmission unit, that is, the wireless transmission unit of the sub-module only supports one transmission mode of ZigBee or bluetooth low power consumption; when the enhanced wireless transmission module of the main module is a bluetooth single-mode transmission unit, the wireless transmission unit of the sub-module is a bluetooth single-mode transmission unit, that is, only the bluetooth low-power transmission mode is supported.
The data communication between the main module and the sub-modules is completed through the enhanced wireless transmission unit of the main module and the wireless transmission unit of the sub-modules; when the enhanced wireless transmission unit of the main module is a dual-mode transmission unit, the data communication between the main module and the sub-modules can adopt a Bluetooth low-power consumption transmission mode or a ZigBee mode; when the enhanced wireless transmission unit of the main module is a single-mode transmission unit, the data communication between the main module and the sub-modules adopts a Bluetooth low-power transmission mode.
The main module can independently complete the weight metering process and independently provide weight information to the outside through the enhanced wireless transmission module; the main module can be matched with any number of sub-modules below 8 to jointly complete the weight metering process, and weight information is independently provided to the outside through the enhanced wireless transmission module. The submodules are not capable of independently performing the weight metering process.
Fig. 2 is a schematic diagram of the weight metering process of the wireless distributed electronic scale according to the invention.
Step A1, supplying power to the main module power supply unit and the sub module power supply unit;
a2, constructing a wireless weighing topological structure by a main control unit of a main module by using a distributed topological structure generation mechanism;
step A3, the main control unit, the AD conversion unit and the sensor unit of the main module acquire weight information of the main module, and the auxiliary control unit, the AD conversion unit and the sensor unit of the sub module acquire weight information of the sub module;
step A4, the main control unit of the main module acquires and accumulates the weight metering information of all modules;
and step A5, the main module main control unit externally releases the weight metering information of the current electronic scale to complete the weight metering process.
Fig. 3 shows a flowchart of the distributed topology generation mechanism in step a 2.
Step S1, the enhanced wireless transmission unit of the main module scans nearby wireless signals under the control of the main control unit;
when the enhanced wireless transmission unit is a dual-mode transmission unit, preferentially scanning nearby ZigBee signals, if the ZigBee broadcast signals specific to the sub-modules are not scanned, continuously scanning the Bluetooth low-power-consumption broadcast signals specific to the nearby sub-modules;
when the enhanced wireless transmission unit is a single-mode transmission unit, directly scanning a specific Bluetooth low-power-consumption broadcast signal of a nearby sub-module;
step S2, when the enhanced wireless sensor does not scan the broadcast signal of any sub-module within a specific time window length T, the main control unit judges that only the main module exists in the current electronic scale and the main module has an independent working mode;
if the enhanced wireless sensor scans broadcast signals (N is less than or equal to 8) of N sub-modules within a specific time window length T, judging that the sub-modules exist in the current electronic scale, and enabling the main module to enter a cooperative working mode;
under an independent working mode, the electronic scale is a single-node weighing topological structure; under the cooperative working mode, the electronic scale is a star-shaped weighing topological structure taking the main module as the center and the sub-modules as nodes;
the time window length T may be set to any value from 5 seconds to 30 seconds;
and step S3, the master control unit of the master module records topological information to complete the establishment of the weighing topological architecture.
Embodiments of a wireless distributed electronic scale including 1 main module and 4 sub-modules and a wireless distributed electronic scale including 1 main module and 3 sub-modules are described in detail below with reference to the accompanying drawings.
The first embodiment is as follows:
fig. 4 shows a wireless distributed electronic scale including 1 main module and 4 sub-modules, where an enhanced wireless transmission unit of the main module is a bluetooth single-mode transmission unit, and a wireless transmission unit of the 4 sub-modules is a bluetooth single-mode transmission unit.
The process for acquiring weight information by the wireless distributed electronic scale in the first embodiment is as follows:
step 1, a power supply unit of a main module supplies power, and power supply units of 4 sub-modules respectively supply power;
step 2, constructing a wireless weighing topological structure by the main control unit of the main module by utilizing a distributed topological structure generation mechanism, wherein the method comprises the following steps of;
(1) the enhanced wireless transmission unit of the main module scans nearby Bluetooth low-power-consumption broadcast signals under the control of the main control unit;
(2) the method comprises the steps that the enhanced wireless sensor scans broadcast signals of 4 sub-modules within a specific time window length T =20 seconds, and a main module enters a cooperative working mode;
(3) and the main control unit of the main module records topological information to complete the establishment of the weighing topological architecture.
Step 3, the main control unit of the main module, the AD conversion unit and the sensor unit acquire weight information of the main module, and the weight information is set to be M1; the auxiliary control unit, the AD conversion unit and the sensor unit of the 4 sub-modules respectively acquire weight information of the sub-modules, and the weight information is respectively M2-M5;
step 4, the main control unit of the main module acquires weight information M2-M5 of the sub-modules and accumulates the weight metering information of all the modules;
M=M1+M2+M3+M4+M5；
and 5, the main control unit of the main module externally releases the weight metering information M of the current electronic scale to complete the weight metering process.
Example two:
fig. 5 shows a wireless distributed electronic scale including 1 main module and 3 sub-modules, where an enhanced wireless transmission unit of the main module is a dual-mode transmission unit, and a wireless transmission unit of the 3 sub-modules is a ZigBee single-mode transmission unit.
The process of acquiring the weight information by the wireless distributed electronic scale of the second embodiment is as follows:
step 1, a power supply unit of a main module supplies power, and power supply units of 3 sub-modules respectively supply power;
step 2, constructing a wireless weighing topological structure by the main control unit of the main module by utilizing a distributed topological structure generation mechanism, wherein the method comprises the following steps of;
(1) the enhanced wireless transmission unit of the main module scans nearby ZigBee broadcast signals under the control of the main control unit;
(2) the method comprises the steps that the enhanced wireless sensor scans broadcast signals of 3 sub-modules within a specific time window length T =15 seconds, and a main module enters a cooperative working mode;
(3) and the main control unit of the main module records topological information to complete the establishment of the weighing topological architecture.
Step 3, the main control unit of the main module, the AD conversion unit and the sensor unit acquire weight information of the main module, and the weight information is set to be M1; the auxiliary control unit, the AD conversion unit and the sensor unit of the 4 sub-modules respectively acquire weight information of the sub-modules, and the weight information is respectively M2-M4;
step 4, the main control unit of the main module acquires weight information M2-M4 of the sub-modules and accumulates the weight metering information of all the modules;
M=M1+M2+M3+M4；
and 5, the main control unit of the main module externally releases the weight metering information M of the current electronic scale to complete the weight metering process.
Conventional electronic scales only support a fixed number of sensors, and thus the range of weighing is a fixed value.
The invention utilizes two wireless transmission technologies of Bluetooth low power consumption and ZigBee to construct a wireless distributed electronic scale, and a main module can be matched with any number of sub-modules below 8 to perform cooperative work. The wireless distributed electronic scale provided by the invention breaks through the form of the traditional electronic scale on one hand, provides possibility for portable appearance design, and brings better experience for users by combined design on the other hand.
The invention has been described in detail with reference to the drawings, but it will be understood by those skilled in the art that the description is for purposes of illustration and that the invention is defined by the claims, and any modifications, equivalents, improvements and the like based on the claims are intended to be included within the scope of the invention.
Claims (7)
1. A wireless distributed electronic scale is characterized by comprising:
m1, a main module, wherein the main module comprises a main control unit, an enhanced wireless transmission unit, an AD conversion unit, a sensor unit and a power supply unit;
m2, N submodules, wherein N is less than or equal to 8, and each submodule comprises an auxiliary control unit, a wireless transmission unit, an AD conversion unit, a sensor unit and a power supply unit;
the main control unit is responsible for generating and processing the data and the instructions of the whole electronic scale; the enhanced wireless transmission unit is responsible for the interaction of data and instructions among the modules and between the electronic scale and external equipment; the auxiliary control module is responsible for forwarding of the sub-module data and responding to the instruction; the wireless transmission unit is responsible for data and instruction interaction between the sub-module and the main module; the AD conversion unit is used for converting the analog signal of the sensor into a digital signal; the sensor unit is responsible for converting the gravity signal into an analog signal; the power supply unit is responsible for providing power supply for other units.
2. The wireless distributed electronic scale according to claim 1, characterized by comprising:
the enhanced wireless transmission unit of the main module is a dual-mode transmission unit or a Bluetooth single-mode transmission unit;
when the enhanced wireless transmission unit of the main module is a dual-mode transmission unit, the enhanced wireless transmission unit supports two wireless transmission modes of Bluetooth low power consumption and ZigBee and can work in the two wireless transmission modes of Bluetooth low power consumption and ZigBee simultaneously;
when the enhanced wireless transmission unit of the main module is a Bluetooth single-mode transmission unit, only one transmission mode of Bluetooth low power consumption is supported, and only the transmission mode of Bluetooth low power consumption is operated;
the enhanced wireless transmission unit of the main module does not support the operation in the ZigBee mode independently.
3. The wireless distributed electronic scale according to claim 1, characterized by comprising:
the wireless transmission unit of the sub-module is a single-mode transmission unit and supports a Bluetooth low-power consumption or ZigBee wireless transmission mode;
when the enhanced wireless transmission module of the main module is a dual-mode transmission unit, the wireless transmission unit of the sub-module is a ZigBee single-mode transmission unit or a Bluetooth single-mode transmission unit, that is, the wireless transmission unit of the sub-module only supports one transmission mode of Zigbee or Bluetooth low power consumption;
when the enhanced wireless transmission module of the main module is a bluetooth single-mode transmission unit, the wireless transmission unit of the sub-module is a bluetooth single-mode transmission unit, that is, only the bluetooth low-power transmission mode is supported.
4. The wireless distributed electronic scale of claim 1, wherein:
the data communication between the main module and the sub-modules is completed through the enhanced wireless transmission unit of the main module and the wireless transmission unit of the sub-modules;
when the enhanced wireless transmission unit of the main module is a dual-mode transmission unit, the data communication between the main module and the sub-modules can adopt a Bluetooth low-power consumption transmission mode or a ZigBee mode; when the enhanced wireless transmission unit of the main module is a single-mode transmission unit, the data communication between the main module and the sub-modules adopts a Bluetooth low-power transmission mode.
5. The wireless distributed electronic scale of claim 1, wherein:
the main module can independently complete the weight metering process and independently provide weight information to the outside through the enhanced wireless transmission module;
the main module can be matched with any number of sub-modules below 8 to jointly complete the weight metering process, and weight information is independently provided to the outside through the enhanced wireless transmission module;
the submodules cannot independently complete the weight metering process.
6. The wireless distributed electronic scale according to claim 1, wherein the weight metering process is:
a1, supplying power to the main module power supply unit and the sub module power supply unit;
a2, constructing a wireless weighing topological structure by the main control unit of the main module by using a distributed topological structure generation mechanism;
a3, a main control unit of the main module, an AD conversion unit and a sensor unit acquire weight information of the main module, and a sub-module auxiliary control unit, the AD conversion unit and the sensor unit acquire weight information of the sub-module;
a4, the main control unit of the main module acquires and accumulates the weight metering information of all modules;
a5, the main module main control unit externally issues the weight metering information of the current electronic scale, and the weight metering process is completed.
7. The distributed topology architecture generation mechanism of claim 6, characterized in that the process is:
s1, scanning nearby wireless signals by the enhanced wireless transmission unit of the main module under the control of the main control unit;
when the enhanced wireless transmission unit is a dual-mode transmission unit, preferentially scanning nearby ZigBee signals, if the ZigBee broadcast signals specific to the sub-modules are not scanned, continuously scanning the Bluetooth low-power-consumption broadcast signals specific to the nearby sub-modules;
when the enhanced wireless transmission unit is a single-mode transmission unit, directly scanning a specific Bluetooth low-power-consumption broadcast signal of a nearby sub-module;
s2, when the enhanced wireless sensor does not scan the broadcast signal of any sub-module within a specific time window length T, the main control unit judges that only the main module exists in the current electronic scale and the main module works in an independent mode;
if the enhanced wireless sensor scans broadcast signals (N is less than or equal to 8) of N sub-modules within a specific time window length T, judging that the sub-modules exist in the current electronic scale, and enabling the main module to enter a cooperative working mode;
under an independent working mode, the electronic scale is a single-node weighing topological structure; under the cooperative working mode, the electronic scale is a star-shaped weighing topological structure taking the main module as the center and the sub-modules as nodes;
the time window length T may be set to any value from 5 seconds to 30 seconds;
and S3, recording topology information by the main control unit of the main module, and finishing the establishment of the weighing topology framework.
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