1. A wireless transmitting method for forming a wireless network using a plurality of communicating devices to carry out asynchronous transmission of information, the method comprising the steps of:
building a monopayload packet having one of predetermined information units of the information for transmission as a data payload,
constituting a multipayload packet having a plurality of the predetermined information units of the information for transmission as a data payload,
adding a predetermined preamble to form a monopayload wireless packet to the monopayload packet and to the multipayload packet to form a multipayload wireless packet,
carrying out the asynchronous transmission by a wireless transmission packet obtained by combining the monopayload wireless packet with the multipayload wireless packet depending on a length of the information to be asynchronously transmitted by the wireless network, wherein when the wireless transmission packet is received and the first information unit is carried out, the reception and processing of subsequent information units is contingent on it being decided that the data payload should continue, and
adding an error detection code or an error correction code to the monopayload packet and the multipayload packet by said information unit for transmission, whereby retransmission is required for each information unit having an error.
2. The wireless transmitting method according to claim 1, further comprising the steps of adding common header information to the monopayload packet and the multipayload packet and decoding the header information to make a state of succeeding data payload packets decidable by a communicating station of destination.
3. The wireless transmitting method according to claim 1, further comprising the step of describing a number of predetermined information units included in the multipayload packet as common header information in the multipayload packet so that the number of continuous information units is specified.
4. The wireless transmitting method according to claim 1, further comprising the step of adding a sequence number to the monopayload packet and obtaining the multipayload packet by adding the number for each increase in the information unit included in the packet.
5. A wireless transmitter for forming a wireless network to carry out asynchronous transmission of information by using a plurality of communicating devices, the transmitter comprising:
dividing means for dividing the information for transmission by the wireless network into predetermined information units,
monopayload packet building means for building a monopayload packet having one of the predetermined information units of the information for transmission as a data payload,
multipayload packet building means for building a multipayload packet having a plurality of the predetermined information units of the information, for transmission as a data payload,
header adding means for adding header information describing a type of payload packet to the monopayload packet and to the multipayload packet,
wireless packet building means for building a wireless transmission packet by combining a wireless monopayload packet with a wireless multipayload packet depending on a length of the asynchronous information to be transmitted by the wireless network,
preamble adding means for adding a predetermined preamble to the monopayload packet to form the monopayload wireless packet and to the multipayload packet to form the multipayload wireless packet,
access control means for carrying out wireless transmission control using the preamble information by an access control signal sent from a control station, whereby the wireless transmission packet is transmitted by the wireless network using the access control means, wherein when the wireless transmission packet is received and the first information unit is carried out, the redemption and processing of subsequent information units is contingent on it being decided that the data payload should continue, and
error adding means for adding an error detection code or an error correction code to the monopayload packet and the multipayload packet by said information unit for transmission, whereby retransmission is required for each information unit having an error.
6. The wireless transmitter according to claim 5, further comprising
receiving means for receiving an access control signal sent from a control device of the wireless network,
access control signal decoding means for decoding the access control signal, and
deciding means for deciding that the relevant access control signal is for its own station,
whereby the wireless transmission of the wireless packet is started using the deciding means.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An encapsulant sheet for a solar cell comprising:
not less than 91% by mass but less than 99% by mass of an ethylene-unsaturated ester copolymer (A) that comprises monomer units derived from ethylene and monomer units derived from at least one unsaturated ester selected from the group consisting of vinyl acetate, vinyl propionate, methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, and ethyl methacrylate, and that fails to comprise monomer units derived from acrylic acid, methacrylic acid, or any unsaturated carboxylic glycidyl ester, wherein the content of the monomer units derived from ethylene is 60% by mass to 80% by mass and the content of the monomer units derived from the at least one unsaturated ester is 20% by mass to 40% by mass where the content of the monomer units derived from ethylene and the content of the monomer units derived from the at least one unsaturated ester are each relative to the sum total of the two contents being taken as 100% by mass,
more than 1% by mass but not more than 9% by mass of at least one olefin resin (B) selected from the group consisting of an ethylene-(meth) acrylic acid copolymer comprising monomer units derived from ethylene and monomer units derived from acrylic acid or methacrylic acid and an ethylene-unsaturated carboxylic glycidyl ester copolymer comprising monomer units derived from ethylene and monomer units derived from an unsaturated carboxylic glycidyl ester, wherein the content of the ethylene-unsaturated ester copolymer (A) and the content of the at least one olefin resin (B) are each relative to the sum total of the two contents being taken as 100% by mass,
0.001 parts by mass to 5 parts by mass of silicon dioxide, and
0.001 parts by mass to 0.5 parts by mass of a silane coupling agent, wherein the content of the silicon dioxide and the content of the silane coupling agent are each relative to the combined content of the ethylene-unsaturated ester copolymer (A) and the at least one olefin resin (B) being taken as 100% by mass.
2. The encapsulant sheet for a solar cell according to claim 1, wherein the ignition loss of the silicon dioxide is 1.3% to 15%.
3. The encapsulant sheet for a solar cell according to claim 1, wherein the ignition loss of the silicon dioxide is 1.3% to 10%.
4. A solar cell comprising a light-receiving-surface protective member, a solar cell element, a lower protective member, and an encapsulant sheet for a solar cell according to claim 1, wherein the solar cell element encapsulated by the encapsulant sheet is disposed between the light-receiving-surface protective member and the lower protective member.